diff options
| -rw-r--r-- | configure.ac | 11 | ||||
| -rw-r--r-- | sys/dxr3/Makefile.am | 20 | ||||
| -rw-r--r-- | sys/dxr3/ac3_padder.c | 255 | ||||
| -rw-r--r-- | sys/dxr3/ac3_padder.h | 129 | ||||
| -rw-r--r-- | sys/dxr3/dxr3audiosink.c | 810 | ||||
| -rw-r--r-- | sys/dxr3/dxr3audiosink.h | 113 | ||||
| -rw-r--r-- | sys/dxr3/dxr3common.h | 39 | ||||
| -rw-r--r-- | sys/dxr3/dxr3init.c | 51 | ||||
| -rw-r--r-- | sys/dxr3/dxr3marshal.list | 5 | ||||
| -rw-r--r-- | sys/dxr3/dxr3spusink.c | 560 | ||||
| -rw-r--r-- | sys/dxr3/dxr3spusink.h | 87 | ||||
| -rw-r--r-- | sys/dxr3/dxr3videosink.c | 762 | ||||
| -rw-r--r-- | sys/dxr3/dxr3videosink.h | 97 | ||||
| -rw-r--r-- | sys/dxr3/gstdxr3.c | 38 | ||||
| -rw-r--r-- | sys/dxr3/gstdxr3videosink.c | 383 | ||||
| -rw-r--r-- | sys/dxr3/gstdxr3videosink.h | 85 |
16 files changed, 2934 insertions, 511 deletions
diff --git a/configure.ac b/configure.ac index ba930d49..d1681d1d 100644 --- a/configure.ac +++ b/configure.ac @@ -292,8 +292,15 @@ dnl ========================================================================== dnl *** DXR3 card *** translit(dnm, m, l) AM_CONDITIONAL(USE_DXR3, true) -GST_CHECK_FEATURE(DXR3, [DXR3 hardware mpeg video decoder], dxr3videosink, [ - AC_CHECK_HEADER(linux/em8300.h, HAVE_DXR3="yes", HAVE_DXR3="no") +GST_CHECK_FEATURE(DXR3, [DXR3 hardware MPEG DVD decoder], + dxr3videosink dxr3audiosink dxr3spusink, [ + HAVE_DXR3=yes + AC_CHECK_HEADER(linux/em8300.h, , + [ AC_MSG_WARN([DXR3/em8300 header file not found]) && + HAVE_DXR3=no ] ) + AC_CHECK_HEADER(linux/soundcard.h, , + [ AC_MSG_WARN([Generic sound header file not found]) && + HAVE_DXR3=no ] ) ]) dnl *** OSS audio *** diff --git a/sys/dxr3/Makefile.am b/sys/dxr3/Makefile.am index 05e969a4..b0309afb 100644 --- a/sys/dxr3/Makefile.am +++ b/sys/dxr3/Makefile.am @@ -1,11 +1,25 @@ -plugindir = $(libdir)/gstreamer-@GST_MAJORMINOR@ +plugindir= $(libdir)/gstreamer-@GST_MAJORMINOR@ plugin_LTLIBRARIES = libgstdxr3.la -libgstdxr3_la_SOURCES = gstdxr3videosink.c gstdxr3.c +libgstdxr3_la_SOURCES = dxr3videosink.c dxr3audiosink.c dxr3spusink.c \ + dxr3init.c ac3_padder.c dxr3marshal.c libgstdxr3_la_CFLAGS = $(GST_CFLAGS) libgstdxr3_la_LIBADD = libgstdxr3_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS) -noinst_HEADERS = gstdxr3videosink.h +BUILT_SOURCES = dxr3marshal.c dxr3marshal.h +built_headers = dxr3marshal.h + +noinst_HEADERS = dxr3videosink.h dxr3audiosink.h dxr3spusink.h \ + dxr3common.h ac3_padder.h + +dxr3marshal.h: dxr3marshal.list + glib-genmarshal --header --prefix=dxr3_marshal $^ > dxr3marshal.h.tmp + mv dxr3marshal.h.tmp dxr3marshal.h + +dxr3marshal.c: dxr3marshal.list + echo "#include \"dxr3marshal.h\"" >> dxr3marshal.c.tmp + glib-genmarshal --body --prefix=dxr3_marshal $^ >> dxr3marshal.c.tmp + mv dxr3marshal.c.tmp dxr3marshal.c diff --git a/sys/dxr3/ac3_padder.c b/sys/dxr3/ac3_padder.c new file mode 100644 index 00000000..f6ff270b --- /dev/null +++ b/sys/dxr3/ac3_padder.c @@ -0,0 +1,255 @@ +/* GStreamer + * Copyright (C) 2003 Martin Soto <martinsoto@users.sourceforge.net> + * + * ac3_padder.c: Pad AC3 frames for use with an SPDIF interface. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ + +#include <stdio.h> +#include <string.h> + +#include "ac3_padder.h" + +#define IEC61937_DATA_TYPE_AC3 1 + +struct frmsize_s +{ + unsigned short bit_rate; + unsigned short frm_size[3]; +}; + + +static const struct frmsize_s frmsizecod_tbl[64] = + { + { 32 ,{64 ,69 ,96 } }, + { 32 ,{64 ,70 ,96 } }, + { 40 ,{80 ,87 ,120 } }, + { 40 ,{80 ,88 ,120 } }, + { 48 ,{96 ,104 ,144 } }, + { 48 ,{96 ,105 ,144 } }, + { 56 ,{112 ,121 ,168 } }, + { 56 ,{112 ,122 ,168 } }, + { 64 ,{128 ,139 ,192 } }, + { 64 ,{128 ,140 ,192 } }, + { 80 ,{160 ,174 ,240 } }, + { 80 ,{160 ,175 ,240 } }, + { 96 ,{192 ,208 ,288 } }, + { 96 ,{192 ,209 ,288 } }, + { 112 ,{224 ,243 ,336 } }, + { 112 ,{224 ,244 ,336 } }, + { 128 ,{256 ,278 ,384 } }, + { 128 ,{256 ,279 ,384 } }, + { 160 ,{320 ,348 ,480 } }, + { 160 ,{320 ,349 ,480 } }, + { 192 ,{384 ,417 ,576 } }, + { 192 ,{384 ,418 ,576 } }, + { 224 ,{448 ,487 ,672 } }, + { 224 ,{448 ,488 ,672 } }, + { 256 ,{512 ,557 ,768 } }, + { 256 ,{512 ,558 ,768 } }, + { 320 ,{640 ,696 ,960 } }, + { 320 ,{640 ,697 ,960 } }, + { 384 ,{768 ,835 ,1152 } }, + { 384 ,{768 ,836 ,1152 } }, + { 448 ,{896 ,975 ,1344 } }, + { 448 ,{896 ,976 ,1344 } }, + { 512 ,{1024 ,1114 ,1536 } }, + { 512 ,{1024 ,1115 ,1536 } }, + { 576 ,{1152 ,1253 ,1728 } }, + { 576 ,{1152 ,1254 ,1728 } }, + { 640 ,{1280 ,1393 ,1920 } }, + { 640 ,{1280 ,1394 ,1920 } } + }; + + + +/* Go one byte forward in the input buffer. */ +#define ac3p_in_fw(padder) ((padder)->in_ptr++, (padder)->remaining--) + +/* Go one byte forward in the output buffer. */ +#define ac3p_out_fw(padder) ((padder)->out_ptr++, (padder)->bytes_to_copy--) + + +/** + * ac3p_init + * @padder: The padder structure to initialize. + * + * Initializes an AC3 stream padder. This structure can be + * subsequently used to parse an AC3 stream and convert it to IEC958 + * (S/PDIF) padded packets. + */ +extern void +ac3p_init(ac3_padder *padder) +{ + const char sync[4] = { 0x72, 0xF8, 0x1F, 0x4E }; + + padder->state = AC3P_STATE_SYNC1; + + /* No material to read yet. */ + padder->remaining = 0; + + /* Initialize the sync bytes in the frame. */ + memcpy(padder->frame.header, sync, 4); +} + + +/** + * ac3_push_data + * @padder The padder structure. + * @data A pointer to a buffer with new data to parse. This should + * correspond to a new piece of a stream containing raw AC3 data. + * @size The number of available bytes in the buffer. + * + * Pushes a new buffer of data to be parsed by the ac3 padder. The + * ac3_parse() function will actually parse the data and report when + * new frames are found. This funcion should only be called once at + * the beginning of the parsing process, or when the ac3_parse() + * function returns the %AC3P_EVENT_PUSH event. + */ +extern void +ac3p_push_data(ac3_padder *padder, guchar *data, guint size) +{ + padder->in_ptr = data; + padder->remaining = size; +} + + +/** + * ac3p_parse + * @padder The padder structure. + * + * Parses the bytes already pushed into the padder structure (see + * ac3p_push_data()) and returns an event value depending on the + * results of the parsing. + * + * Returns: %AC3P_EVENT_FRAME to indicate that a new AC3 was found and + * padded for IEC958 transmission. This frame can be read inmediatly + * with ac3p_frame(). %AC3P_EVENT_PUSH to indicate that new data from + * the input stream must be pushed into the padder using + * ac3p_push_data(). This function should be called again after + * pushing the data. + */ +extern int +ac3p_parse(ac3_padder *padder) +{ + while (padder->remaining > 0) { + switch (padder->state) { + case AC3P_STATE_SYNC1: + if (*(padder->in_ptr) == 0x0b) { + /* The first sync byte was found. Go to the next state. */ + padder->frame.sync_byte1 = 0x0b; + padder->state = AC3P_STATE_SYNC2; + } + ac3p_in_fw(padder); + break; + + case AC3P_STATE_SYNC2: + if (*(padder->in_ptr) == 0x77) { + /* The second sync byte was seen right after the first. Go to + the next state. */ + padder->frame.sync_byte2 = 0x77; + padder->state = AC3P_STATE_HEADER; + + /* Skip one byte. */ + ac3p_in_fw(padder); + + /* Prepare for reading the header. */ + padder->out_ptr = (guchar *) &(padder->frame.crc1); + /* Discount the 2 sync bytes from the header size. */ + padder->bytes_to_copy = AC3P_AC3_HEADER_SIZE - 2; + } + else { + /* The second sync byte was not seen. Go back to the + first state. */ + padder->state = AC3P_STATE_SYNC1; + } + break; + + case AC3P_STATE_HEADER: + if (padder->bytes_to_copy > 0) { + /* Copy one byte. */ + *(padder->out_ptr) = *(padder->in_ptr); + ac3p_in_fw(padder); + ac3p_out_fw(padder); + } + else { + int fscod; + + /* The header is ready: */ + + fscod = (padder->frame.code >> 6) & 0x03; + + /* Calculate the frame size. */ + padder->ac3_frame_size = + 2 * frmsizecod_tbl[padder->frame.code & 0x3f].frm_size[fscod]; + + /* Set up the IEC header. */ + if (padder->ac3_frame_size > 0) { + padder->frame.header[4] = IEC61937_DATA_TYPE_AC3; + } + else { + /* Don't know what it is, better be careful. */ + padder->state = AC3P_STATE_SYNC1; + break; + } + padder->frame.header[5] = 0x00; + padder->frame.header[6] = (padder->ac3_frame_size*8) & 0xFF; + padder->frame.header[7] = ((padder->ac3_frame_size*8) >> 8) & 0xFF; + + /* Prepare for reading the body. */ + padder->bytes_to_copy = padder->ac3_frame_size - AC3P_AC3_HEADER_SIZE; + padder->state = AC3P_STATE_CONTENT; + } + break; + + case AC3P_STATE_CONTENT: + if (padder->bytes_to_copy > 0) { + /* Copy one byte. */ + *(padder->out_ptr) = *(padder->in_ptr); + ac3p_in_fw(padder); + ac3p_out_fw(padder); + } + else { + guint16 *ptr, i; + + /* Frame ready. Prepare for output: */ + + /* Zero the non AC3 portion of the padded frame. */ + memset(&(padder->frame.sync_byte1) + padder->ac3_frame_size, 0, + AC3P_IEC_FRAME_SIZE - AC3P_IEC_HEADER_SIZE - padder->ac3_frame_size); + + /* Fix the byte order in the AC3 portion: */ + ptr = (guint16 *) &(padder->frame.sync_byte1); + i = padder->ac3_frame_size / 2; + while (i > 0) { + *ptr = GUINT16_TO_BE(*ptr); + ptr++; + i--; + } + + /* Start over again. */ + padder->state = AC3P_STATE_SYNC1; + + return AC3P_EVENT_FRAME; + } + break; + } + } + + return AC3P_EVENT_PUSH; +} + diff --git a/sys/dxr3/ac3_padder.h b/sys/dxr3/ac3_padder.h new file mode 100644 index 00000000..c9a7447e --- /dev/null +++ b/sys/dxr3/ac3_padder.h @@ -0,0 +1,129 @@ +/* GStreamer + * Copyright (C) 2003 Martin Soto <martinsoto@users.sourceforge.net> + * + * ac3_padder.h: Pad AC3 frames for use with an SPDIF interface. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ + +#ifndef AC3_PADDER_INC +#define AC3_PADDER_INC + +#include <glib.h> + + +/* Size of an IEC958 padded AC3 frame. */ +#define AC3P_IEC_FRAME_SIZE 6144 +/* Size of the IEC958 header. */ +#define AC3P_IEC_HEADER_SIZE 8 +/* Size of the AC3 header. */ +#define AC3P_AC3_HEADER_SIZE 7 + + +/* An IEC958 padded AC3 frame. */ +typedef struct { + /* IEC header. */ + guchar header[AC3P_IEC_HEADER_SIZE]; + + /* Begin of AC3 header. */ + guchar sync_byte1; + guchar sync_byte2; + + guchar crc1[2]; + guchar code; + guchar bsidmod; + guchar acmod; + /* End of AC3 header. */ + + unsigned char data[AC3P_IEC_FRAME_SIZE - AC3P_IEC_HEADER_SIZE + - AC3P_AC3_HEADER_SIZE]; +} ac3p_iec958_burst_frame; + + +/* Possible states for the reading automaton: */ + +/* Searching for sync byte 1. */ +#define AC3P_STATE_SYNC1 1 +/* Searching for sync byte 2. */ +#define AC3P_STATE_SYNC2 2 +/* Reading AC3 header. */ +#define AC3P_STATE_HEADER 3 +/* Reading packet contents.*/ +#define AC3P_STATE_CONTENT 4 + + +/* Events generated by the parse function: */ + +/* The parser needs new data to be pushed. */ +#define AC3P_EVENT_PUSH 1 +/* There is a new padded frame ready to read from the padder structure. */ +#define AC3P_EVENT_FRAME 2 + + +/* The internal state for the padder. */ +typedef struct { + guint state; /* State of the reading automaton. */ + + guchar *in_ptr; /* Input pointer, marking the current + postion in the input buffer. */ + guint remaining; /* The number of bytes remaining in the current + reading buffer. */ + + guchar *out_ptr; /* Output pointer, marking the current + position in the output frame. */ + guint bytes_to_copy; + /* Number of bytes that still must be copied + to the output frame *during this reading + stage*. */ + + guint ac3_frame_size; + /* The size in bytes of the pure AC3 portion + of the current frame. */ + + ac3p_iec958_burst_frame frame; + /* The current output frame. */ +} ac3_padder; + + + +extern void +ac3p_init(ac3_padder *padder); + +extern void +ac3p_push_data(ac3_padder *padder, guchar *data, guint size); + +extern int +ac3p_parse(ac3_padder *padder); + + +/** + * ac3p_frame + * @padder The padder structure. + * + * Returns a pointer to the padded frame contained in the padder. + */ +#define ac3p_frame(padder) ((guint *) &((padder)->frame)) + +/** + * ac3p_frame_size + * @padder The padder structure. + * + * Returns the length in bytes of the last read raw AC3 frame. + */ +#define ac3p_frame_size(padder) ((padder)->ac3_frame_size) + + +#endif diff --git a/sys/dxr3/dxr3audiosink.c b/sys/dxr3/dxr3audiosink.c new file mode 100644 index 00000000..41012096 --- /dev/null +++ b/sys/dxr3/dxr3audiosink.c @@ -0,0 +1,810 @@ +/* GStreamer + * Copyright (C) 2003 Martin Soto <martinsoto@users.sourceforge.net> + * + * dxr3audiosink.c: Audio sink for em8300 based DVD cards. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ + +#include <errno.h> +#include <string.h> +#include <fcntl.h> +#include <unistd.h> +#include <sys/ioctl.h> + +#include <linux/soundcard.h> +#include <linux/em8300.h> + +#include <gst/gst.h> + +#include "dxr3audiosink.h" +#include "dxr3marshal.h" +#include "dxr3common.h" + +/* Our only supported AC3 byte rate. */ +#define AC3_BYTE_RATE 48000 + +/* Determines the amount of time to play the given number of bytes of + the original AC3 stream. The result is expressed as MPEG2. */ +#define TIME_FOR_BYTES(bytes) (((bytes) * 90) / 48) + + +/* ElementFactory information. */ +static GstElementDetails dxr3audiosink_details = { + "dxr3/Hollywood+ mpeg decoder board audio plugin", + "audio/raw|a52", + "GPL", + "Feeds audio to Sigma Designs em8300 based boards", + VERSION, + "Martin Soto <martinsoto@users.sourceforge.net>", + "(C) 2003", +}; + + +/* Dxr3AudioSink signals and args */ +enum { + SIGNAL_FLUSHED, + LAST_SIGNAL +}; + +enum { + ARG_0, + ARG_DIGITAL_PCM +}; + + +GST_PAD_TEMPLATE_FACTORY (dxr3audiosink_pcm_sink_factory, + "pcm_sink", + GST_PAD_SINK, + GST_PAD_ALWAYS, + GST_CAPS_NEW ( + "dxr3audiosink_pcm_sink", + "audio/raw", + "format", GST_PROPS_STRING ("int"), + "law", GST_PROPS_INT (0), + "endianness", GST_PROPS_INT (G_BYTE_ORDER), + "signed", GST_PROPS_BOOLEAN (TRUE), + "width", GST_PROPS_INT (16), + "depth", GST_PROPS_INT (16), + "rate", GST_PROPS_LIST ( + GST_PROPS_INT (32000), + GST_PROPS_INT (44100), + GST_PROPS_INT (48000), + GST_PROPS_INT (66000) + ), + "channels", GST_PROPS_INT (2) + ) +) + +GST_PAD_TEMPLATE_FACTORY (dxr3audiosink_ac3_sink_factory, + "ac3_sink", + GST_PAD_SINK, + GST_PAD_ALWAYS, + GST_CAPS_NEW ( + "dxr3audiosink_ac3_sink", + "audio/a52", + NULL + ) +) + + +GST_PAD_EVENT_MASK_FUNCTION(dxr3audiosink_get_event_mask, + { GST_EVENT_FLUSH, 0 }, + { GST_EVENT_DISCONTINUOUS, 0 }, + { GST_EVENT_NEW_MEDIA, 0 }, + { GST_EVENT_EOS, 0 } +) + + +static void dxr3audiosink_class_init (Dxr3AudioSinkClass *klass); +static void dxr3audiosink_init (Dxr3AudioSink *sink); + +static void dxr3audiosink_set_property (GObject *object, + guint prop_id, + const GValue *value, + GParamSpec *pspec); +static void dxr3audiosink_get_property (GObject *object, + guint prop_id, + GValue *value, + GParamSpec *pspec); + +static gboolean dxr3audiosink_open (Dxr3AudioSink *sink); +static gboolean dxr3audiosink_set_mode_pcm (Dxr3AudioSink *sink); +static gboolean dxr3audiosink_set_mode_ac3 (Dxr3AudioSink *sink); +static void dxr3audiosink_close (Dxr3AudioSink *sink); +static void dxr3audiosink_set_clock (GstElement *element, + GstClock *clock); + +static GstPadLinkReturn dxr3audiosink_pcm_sinklink (GstPad *pad, + GstCaps *caps); +static void dxr3audiosink_set_scr (Dxr3AudioSink *sink, + guint32 scr); + +static gboolean dxr3audiosink_handle_event (GstPad *pad, + GstEvent *event); +static void dxr3audiosink_chain_pcm (GstPad *pad,GstBuffer *buf); +static void dxr3audiosink_chain_ac3 (GstPad *pad, GstBuffer *buf); + +/* static void dxr3audiosink_wait (Dxr3AudioSink *sink, */ +/* GstClockTime time); */ +/* static int dxr3audiosink_mvcommand (Dxr3AudioSink *sink, */ +/* int command); */ + +static GstElementStateReturn dxr3audiosink_change_state (GstElement *element); + +static void dxr3audiosink_flushed (Dxr3AudioSink *sink); + +static GstElementClass *parent_class = NULL; +static guint dxr3audiosink_signals[LAST_SIGNAL] = { 0 }; + + +extern GType +dxr3audiosink_get_type (void) +{ + static GType dxr3audiosink_type = 0; + + if (!dxr3audiosink_type) { + static const GTypeInfo dxr3audiosink_info = { + sizeof(Dxr3AudioSinkClass), + NULL, + NULL, + (GClassInitFunc) dxr3audiosink_class_init, + NULL, + NULL, + sizeof (Dxr3AudioSink), + 0, + (GInstanceInitFunc) dxr3audiosink_init, + }; + dxr3audiosink_type = g_type_register_static (GST_TYPE_ELEMENT, + "Dxr3AudioSink", + &dxr3audiosink_info, 0); + } + + return dxr3audiosink_type; +} + + +static void +dxr3audiosink_class_init (Dxr3AudioSinkClass *klass) +{ + GObjectClass *gobject_class; + GstElementClass *gstelement_class; + + gobject_class = (GObjectClass*)klass; + gstelement_class = (GstElementClass*)klass; + + parent_class = g_type_class_ref (GST_TYPE_ELEMENT); + + dxr3audiosink_signals[SIGNAL_FLUSHED] = + g_signal_new ("flushed", G_TYPE_FROM_CLASS (klass), + G_SIGNAL_RUN_LAST, + G_STRUCT_OFFSET (Dxr3AudioSinkClass, flushed), + NULL, NULL, + dxr3_marshal_VOID__VOID, + G_TYPE_NONE, 0); + + klass->flushed = dxr3audiosink_flushed; + + g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_DIGITAL_PCM, + g_param_spec_boolean ("digital-pcm", "Digital PCM", + "Use the digital output for PCM sound", + FALSE, G_PARAM_READWRITE)); + + gobject_class->set_property = dxr3audiosink_set_property; + gobject_class->get_property = dxr3audiosink_get_property; + + gstelement_class->change_state = dxr3audiosink_change_state; + gstelement_class->set_clock = dxr3audiosink_set_clock; +} + + +static void +dxr3audiosink_init (Dxr3AudioSink *sink) +{ + GstCaps *caps; + GstPadTemplate *temp; + + /* Create the PCM pad. */ + temp = GST_PAD_TEMPLATE_GET (dxr3audiosink_pcm_sink_factory); + sink->pcm_sinkpad = gst_pad_new_from_template (temp, "pcm_sink"); + gst_pad_set_chain_function (sink->pcm_sinkpad, dxr3audiosink_chain_pcm); + gst_pad_set_link_function (sink->pcm_sinkpad, dxr3audiosink_pcm_sinklink); + gst_element_add_pad (GST_ELEMENT (sink), sink->pcm_sinkpad); + + /* Create the AC3 pad. */ + temp = GST_PAD_TEMPLATE_GET (dxr3audiosink_ac3_sink_factory); + sink->ac3_sinkpad = gst_pad_new_from_template (temp, "ac3_sink"); + caps = gst_pad_template_get_caps (temp); + gst_pad_try_set_caps (sink->ac3_sinkpad, caps); + gst_caps_unref (caps); + gst_pad_set_chain_function (sink->ac3_sinkpad, dxr3audiosink_chain_ac3); + gst_element_add_pad (GST_ELEMENT (sink), sink->ac3_sinkpad); + + GST_FLAG_SET (GST_ELEMENT(sink), GST_ELEMENT_EVENT_AWARE); + gst_pad_set_event_function (sink->pcm_sinkpad, dxr3audiosink_handle_event); + gst_pad_set_event_mask_function (sink->pcm_sinkpad, + dxr3audiosink_get_event_mask); + gst_pad_set_event_function (sink->ac3_sinkpad, dxr3audiosink_handle_event); + gst_pad_set_event_mask_function (sink->ac3_sinkpad, + dxr3audiosink_get_event_mask); + + sink->card_number = 0; + + sink->audio_filename = NULL; + sink->audio_fd = -1; + + sink->control_filename = NULL; + sink->control_fd = -1; + + /* Since we don't know any better, we set the initial scr to 0. */ + sink->scr = 0; + + /* Initially don't use digital output. */ + sink->digital_pcm = FALSE; + + /* Initially there's no padder.*/ + sink->padder = NULL; + + sink->mode = DXR3AUDIOSINK_MODE_NONE; +} + + +static void +dxr3audiosink_set_property (GObject *object, guint prop_id, + const GValue *value, GParamSpec *pspec) +{ + Dxr3AudioSink *sink; + + /* it's not null if we got it, but it might not be ours */ + sink = DXR3AUDIOSINK (object); + + switch (prop_id) { + case ARG_DIGITAL_PCM: + sink->digital_pcm = g_value_get_boolean (value); + /* Refresh the setup of the device. */ + if (sink->mode == DXR3AUDIOSINK_MODE_PCM) { + dxr3audiosink_set_mode_pcm (sink); + } + g_object_notify (G_OBJECT (sink), "digital-pcm"); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + break; + } +} + + +static void +dxr3audiosink_get_property (GObject *object, guint prop_id, + GValue *value, GParamSpec *pspec) +{ + Dxr3AudioSink *sink; + + /* it's not null if we got it, but it might not be ours */ + g_return_if_fail (GST_IS_DXR3AUDIOSINK (object)); + + sink = DXR3AUDIOSINK (object); + + switch (prop_id) { + case ARG_DIGITAL_PCM: + g_value_set_boolean (value, sink->digital_pcm); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + break; + } +} + + +static gboolean +dxr3audiosink_open (Dxr3AudioSink *sink) +{ + g_return_val_if_fail (!GST_FLAG_IS_SET (sink, + DXR3AUDIOSINK_OPEN), FALSE); + + /* Compute the name of the audio device file. */ + sink->audio_filename = g_strdup_printf ("/dev/em8300_ma-%d", + sink->card_number ); + + sink->audio_fd = open (sink->audio_filename, O_WRONLY); + if (sink->audio_fd < 0) { + gst_element_error (GST_ELEMENT (sink), + g_strconcat ("Error opening device file \"", + sink->audio_filename, "\": ", + g_strerror (errno), NULL)); + return FALSE; + } + + /* Open the control device. */ + sink->control_filename = g_strdup_printf ("/dev/em8300-%d", + sink->card_number ); + + sink->control_fd = open (sink->control_filename, O_WRONLY); + if (sink->control_fd < 0) { + gst_element_error (GST_ELEMENT (sink), + g_strconcat ("Error opening device file \"", + sink->control_filename, "\": ", + g_strerror (errno), NULL)); + return FALSE; + } + + GST_FLAG_SET (sink, DXR3AUDIOSINK_OPEN); + + dxr3audiosink_set_mode_pcm (sink); + + return TRUE; +} + + +/** + * dxr3audiosink_set_mode: + * @sink: The sink element to operate on. + * + * Set the operation mode of the element to PCM. + */ +static gboolean +dxr3audiosink_set_mode_pcm (Dxr3AudioSink *sink) +{ + int tmp, oss_mode, audiomode; + + if (sink->audio_fd == -1 || sink->control_fd == -1) { + return FALSE; + } + + /* Set the audio device mode. */ + oss_mode = (G_BYTE_ORDER == G_BIG_ENDIAN ? AFMT_S16_BE : AFMT_S16_LE); + tmp = oss_mode; + if (ioctl (sink->audio_fd, SNDCTL_DSP_SETFMT, &tmp) < 0 || + tmp != oss_mode) { + gst_element_error (GST_ELEMENT (sink), + g_strconcat ("Error configuring device mode for \"", + sink->audio_filename, "\": ", + g_strerror (errno), NULL)); + return FALSE; + } + + /* Set the card's general audio output mode. */ + audiomode = sink->digital_pcm ? + EM8300_AUDIOMODE_DIGITALPCM : EM8300_AUDIOMODE_ANALOG; + ioctl (sink->control_fd, EM8300_IOCTL_SET_AUDIOMODE, &audiomode); + + /* Set the sampling rate. */ + tmp = sink->rate; + if (ioctl (sink->audio_fd, SNDCTL_DSP_SPEED, &tmp) < 0) { + gst_element_error (GST_ELEMENT (sink), + g_strconcat ("Error configuring device " + "sampling rate for \"", + sink->audio_filename, "\": ", + g_strerror (errno), NULL)); + return FALSE; + } + + /* Get rid of the padder, if any. */ + if (sink->padder != NULL) { + g_free(sink->padder); + sink->padder = NULL; + } + + sink->mode = DXR3AUDIOSINK_MODE_PCM; + + return TRUE; +} + + +/** + * dxr3audiosink_set_mode: + * @sink: The sink element to operate on + * + * Set the operation mode of the element to AC3. + */ +static gboolean +dxr3audiosink_set_mode_ac3 (Dxr3AudioSink *sink) +{ + int tmp, audiomode; + + if (sink->audio_fd == -1 || sink->control_fd == -1) { + return FALSE; + } + + /* Set the sampling rate. */ + tmp = AC3_BYTE_RATE; + if (ioctl (sink->audio_fd, SNDCTL_DSP_SPEED, &tmp) < 0 || + tmp != AC3_BYTE_RATE) { + gst_element_error (GST_ELEMENT (sink), + g_strconcat ("Error configuring device " + "sampling rate for \"", + sink->audio_filename, "\": ", + g_strerror (errno), NULL)); + return FALSE; + } + + /* Set the card's general audio output mode to AC3. */ + audiomode = EM8300_AUDIOMODE_DIGITALAC3; + ioctl (sink->control_fd, EM8300_IOCTL_SET_AUDIOMODE, &audiomode); + + /* Create a padder if necessary, */ + if (sink->padder == NULL) { + sink->padder = g_malloc (sizeof(ac3_padder)); + ac3p_init(sink->padder); + } + + sink->mode = DXR3AUDIOSINK_MODE_AC3; + + return TRUE; +} + + +static void +dxr3audiosink_close (Dxr3AudioSink *sink) +{ + g_return_if_fail (GST_FLAG_IS_SET (sink, DXR3AUDIOSINK_OPEN)); + + if (close (sink->audio_fd) != 0) { + gst_element_error (GST_ELEMENT (sink), + g_strconcat ("Error closing file \"", + sink->audio_filename, "\": ", + g_strerror (errno), NULL)); + return; + } + + if (close (sink->control_fd) != 0) { + gst_element_error (GST_ELEMENT (sink), + g_strconcat ("Error closing file \"", + sink->control_filename, "\": ", + g_strerror (errno), NULL)); + return; + } + + GST_FLAG_UNSET (sink, DXR3AUDIOSINK_OPEN); + + g_free (sink->audio_filename); + sink->audio_filename = NULL; + + g_free (sink->control_filename); + sink->control_filename = NULL; + + /* Get rid of the padder, if any. */ + if (sink->padder != NULL) { + g_free(sink->padder); + sink->padder = NULL; + } +} + + +static void +dxr3audiosink_set_clock (GstElement *element, GstClock *clock) +{ + Dxr3AudioSink *src = DXR3AUDIOSINK (element); + + src->clock = clock; +} + + +static GstPadLinkReturn +dxr3audiosink_pcm_sinklink (GstPad *pad, GstCaps *caps) +{ + Dxr3AudioSink *sink = DXR3AUDIOSINK (gst_pad_get_parent (pad)); + const gchar* mimetype; + gint rate; + + if (!GST_CAPS_IS_FIXED(caps)) { + return GST_PAD_LINK_DELAYED; + } + + mimetype = gst_caps_get_mime(caps); + if (strcmp (mimetype, "audio/raw") != 0) { + return GST_PAD_LINK_REFUSED; + } + + if (!gst_caps_has_property (caps, "rate")) { + return GST_PAD_LINK_REFUSED; + } + + gst_caps_get_int (caps, "rate", &rate); + if (rate != 32000 && rate != 44100 && + rate != 48000 && rate != 66000) { + return GST_PAD_LINK_DELAYED; + } + sink->rate = rate; + + return GST_PAD_LINK_OK; +} + + +static void +dxr3audiosink_set_scr (Dxr3AudioSink *sink, guint32 scr) +{ + guint32 zero = 0; + +/* fprintf (stderr, "====== Adjusting SCR\n"); */ + ioctl (sink->control_fd, EM8300_IOCTL_SCR_SET, &zero); + ioctl (sink->control_fd, EM8300_IOCTL_SCR_SET, &scr); +} + + +static gboolean +dxr3audiosink_handle_event (GstPad *pad, GstEvent *event) +{ + GstEventType type; + Dxr3AudioSink *sink = DXR3AUDIOSINK (gst_pad_get_parent (pad)); + + type = event ? GST_EVENT_TYPE (event) : GST_EVENT_UNKNOWN; + + switch (type) { + case GST_EVENT_FLUSH: + if (sink->control_fd >= 0) { + unsigned audiomode; + + if (sink->mode == DXR3AUDIOSINK_MODE_AC3) { + audiomode = EM8300_AUDIOMODE_DIGITALPCM; + ioctl (sink->control_fd, EM8300_IOCTL_SET_AUDIOMODE, &audiomode); + audiomode = EM8300_AUDIOMODE_DIGITALAC3; + ioctl (sink->control_fd, EM8300_IOCTL_SET_AUDIOMODE, &audiomode); + } + + /* Report the flush operation. */ + g_signal_emit (G_OBJECT (sink), + dxr3audiosink_signals[SIGNAL_FLUSHED], 0); + } + break; + default: + gst_pad_event_default (pad, event); + break; + } + + return TRUE; +} + + +static void +dxr3audiosink_chain_pcm (GstPad *pad, GstBuffer *buf) +{ + Dxr3AudioSink *sink; + gint bytes_written = 0; + + g_return_if_fail (pad != NULL); + g_return_if_fail (GST_IS_PAD (pad)); + g_return_if_fail (buf != NULL); + + sink = DXR3AUDIOSINK (gst_pad_get_parent (pad)); + + if (GST_IS_EVENT (buf)) { + dxr3audiosink_handle_event (pad, GST_EVENT (buf)); + return; + } + + if (sink->mode != DXR3AUDIOSINK_MODE_PCM) { + /* Switch to PCM mode. */ + dxr3audiosink_set_mode_pcm (sink); + } + + if (GST_FLAG_IS_SET (sink, DXR3AUDIOSINK_OPEN)) { + if (GST_BUFFER_TIMESTAMP (buf) != GST_CLOCK_TIME_NONE) { + /* We have a new scr value. */ + sink->scr = GSTTIME_TO_MPEGTIME (GST_BUFFER_TIMESTAMP (buf)); + } + + /* Update the system reference clock (SCR) in the card. */ + { + unsigned in, out, odelay; + unsigned diff; + + ioctl (sink->control_fd, EM8300_IOCTL_SCR_GET, &out); + + ioctl (sink->audio_fd, SNDCTL_DSP_GETODELAY, &odelay); + + in = MPEGTIME_TO_DXRTIME (sink->scr - (odelay * 90) / 192); + diff = in > out ? in - out : out - in; + if (diff > 1800) { + dxr3audiosink_set_scr (sink, in); + } + } + + /* Update our SCR value. */ + sink->scr += (unsigned) (GST_BUFFER_SIZE (buf) * + (90000.0 / ((float)sink->rate * 4))); + + /* Write the buffer to the sound device. */ + bytes_written = write (sink->audio_fd, GST_BUFFER_DATA (buf), + GST_BUFFER_SIZE (buf)); + if (bytes_written < GST_BUFFER_SIZE (buf)) { + fprintf (stderr, "dxr3audiosink: Warning: %d bytes should be " + "written, only %d bytes written\n", + GST_BUFFER_SIZE (buf), bytes_written); + } + } + + gst_buffer_unref (buf); +} + + +static void +dxr3audiosink_chain_ac3 (GstPad *pad, GstBuffer *buf) +{ + Dxr3AudioSink *sink; + gint bytes_written = 0; + + g_return_if_fail (pad != NULL); + g_return_if_fail (GST_IS_PAD (pad)); + g_return_if_fail (buf != NULL); + + sink = DXR3AUDIOSINK (gst_pad_get_parent (pad)); + + if (GST_IS_EVENT (buf)) { + dxr3audiosink_handle_event (pad, GST_EVENT (buf)); + return; + } + + if (sink->mode != DXR3AUDIOSINK_MODE_AC3) { + /* Switch to AC3 mode. */ + dxr3audiosink_set_mode_ac3 (sink); + } + + if (GST_FLAG_IS_SET (sink, DXR3AUDIOSINK_OPEN)) + { + int event; + + if (GST_BUFFER_TIMESTAMP (buf) != GST_CLOCK_TIME_NONE) { + /* We have a new scr value. */ + +/* fprintf (stderr, "------ Audio Time %.04f\n", */ +/* (double) GST_BUFFER_TIMESTAMP (buf) / GST_SECOND); */ + + sink->scr = GSTTIME_TO_MPEGTIME (GST_BUFFER_TIMESTAMP (buf)); + } + + /* Push the new data into the padder. */ + ac3p_push_data(sink->padder, GST_BUFFER_DATA (buf), + GST_BUFFER_SIZE (buf)); + + /* Parse the data. */ + event = ac3p_parse (sink->padder); + while (event != AC3P_EVENT_PUSH) { + switch (event) { + case AC3P_EVENT_FRAME: + /* We have a new frame: */ + + /* Update the system reference clock (SCR) in the card. */ + { + unsigned in, out, odelay; + unsigned diff; + + ioctl (sink->control_fd, EM8300_IOCTL_SCR_GET, &out); + + ioctl (sink->audio_fd, SNDCTL_DSP_GETODELAY, &odelay); + /* 192000 bytes/sec */ + + in = MPEGTIME_TO_DXRTIME (sink->scr - (odelay * 90) / 192); + diff = in > out ? in - out : out - in; + if (diff > 1800) { + dxr3audiosink_set_scr (sink, in); + } + } + + /* Update our SCR value. */ + sink->scr += TIME_FOR_BYTES (ac3p_frame_size (sink->padder)); + + /* Write the frame to the sound device. */ + bytes_written = write (sink->audio_fd, ac3p_frame (sink->padder), + AC3P_IEC_FRAME_SIZE); + + if (bytes_written < AC3P_IEC_FRAME_SIZE) + { + fprintf (stderr, "dxr3audiosink: Warning: %d bytes should be " + "written, only %d bytes written\n", + AC3P_IEC_FRAME_SIZE, bytes_written); + } + + break; + } + + event = ac3p_parse (sink->padder); + } + } + + gst_buffer_unref(buf); +} + +#if 0 +/** + * dxr3audiosink_wait: + * Make the sink wait the specified amount of time. + */ +static void +dxr3audiosink_wait (Dxr3AudioSink *sink, GstClockTime time) +{ + GstClockID id; + GstClockTimeDiff jitter; + GstClockReturn ret; + GstClockTime current_time = gst_clock_get_time (sink->clock); + + id = gst_clock_new_single_shot_id (sink->clock, current_time + time); + ret = gst_clock_id_wait (id, &jitter); + gst_clock_id_free (id); +} + + +static int +dxr3audiosink_mvcommand (Dxr3AudioSink *sink, int command) +{ + em8300_register_t regs; + + regs.microcode_register = 1; + regs.reg = 0; + regs.val = command; + + return ioctl (sink->control_fd, EM8300_IOCTL_WRITEREG, ®s); +} +#endif + +static GstElementStateReturn +dxr3audiosink_change_state (GstElement *element) +{ + g_return_val_if_fail (GST_IS_DXR3AUDIOSINK (element), GST_STATE_FAILURE); + + if (GST_STATE_PENDING (element) == GST_STATE_NULL) { + if (GST_FLAG_IS_SET (element, DXR3AUDIOSINK_OPEN)) { + dxr3audiosink_close (DXR3AUDIOSINK (element)); + } + } + else { + if (!GST_FLAG_IS_SET (element, DXR3AUDIOSINK_OPEN)) { + if (!dxr3audiosink_open (DXR3AUDIOSINK (element))) { + return GST_STATE_FAILURE; + } + } + } + + if (GST_ELEMENT_CLASS (parent_class)->change_state) { + return GST_ELEMENT_CLASS (parent_class)->change_state (element); + } + + return GST_STATE_SUCCESS; +} + + +/** + * dxr3audiosink_flushed: + * + * Default do nothing implementation for the "flushed" signal. The + * "flushed" signal will be fired right after flushing the hardware + * queues due to a received flush event + */ +static void +dxr3audiosink_flushed (Dxr3AudioSink *sink) +{ + /* Do nothing. */ +} + + +extern gboolean +dxr3audiosink_factory_init (GstPlugin *plugin) +{ + GstElementFactory *factory; + + factory = gst_element_factory_new ("dxr3audiosink", + GST_TYPE_DXR3AUDIOSINK, + &dxr3audiosink_details); + g_return_val_if_fail (factory != NULL, FALSE); + gst_element_factory_add_pad_template (factory, + GST_PAD_TEMPLATE_GET (dxr3audiosink_pcm_sink_factory)); + gst_element_factory_add_pad_template (factory, + GST_PAD_TEMPLATE_GET (dxr3audiosink_ac3_sink_factory)); + + gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (factory)); + + return TRUE; +} diff --git a/sys/dxr3/dxr3audiosink.h b/sys/dxr3/dxr3audiosink.h new file mode 100644 index 00000000..28bb34ec --- /dev/null +++ b/sys/dxr3/dxr3audiosink.h @@ -0,0 +1,113 @@ +/* GStreamer + * Copyright (C) 2003 Martin Soto <martinsoto@users.sourceforge.net> + * + * dxr3audiosink.h: Audio sink for em8300 based DVD cards. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ + +#ifndef __DXR3AUDIOSINK_H__ +#define __DXR3AUDIOSINK_H__ + +#include <gst/gst.h> + +#include "ac3_padder.h" + +G_BEGIN_DECLS + + +#define GST_TYPE_DXR3AUDIOSINK \ + (dxr3audiosink_get_type()) +#define DXR3AUDIOSINK(obj) \ + (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_DXR3AUDIOSINK,Dxr3AudioSink)) +#define DXR3AUDIOSINK_CLASS(klass) \ + (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_DXR3AUDIOSINK,Dxr3AudioSinkClass)) +#define GST_IS_DXR3AUDIOSINK(obj) \ + (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_DXR3AUDIOSINK)) +#define GST_IS_DXR3AUDIOSINK_CLASS(obj) \ + (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_DXR3AUDIOSINK)) + + +typedef struct _Dxr3AudioSink Dxr3AudioSink; +typedef struct _Dxr3AudioSinkClass Dxr3AudioSinkClass; + + +typedef enum { + DXR3AUDIOSINK_OPEN = GST_ELEMENT_FLAG_LAST, + DXR3AUDIOSINK_FLAG_LAST = GST_ELEMENT_FLAG_LAST + 2, +} Dxr3AudioSinkFlags; + + +/* PCM or AC3? */ +typedef enum { + DXR3AUDIOSINK_MODE_NONE, /* No mode set. */ + DXR3AUDIOSINK_MODE_AC3, /* AC3 out. */ + DXR3AUDIOSINK_MODE_PCM, /* PCM out. */ +} Dxr3AudioSinkMode; + + +/* Information for a delayed SCR set operation. */ +typedef struct { + struct _Dxr3AudioSink *sink; + guint32 scr; +} Dxr3AudioSinkDelayedSCR; + + +struct _Dxr3AudioSink { + GstElement element; + + GstPad *pcm_sinkpad; /* The AC3 audio sink pad. */ + GstPad *ac3_sinkpad; /* The PCM audio sink pad. */ + + int card_number; /* The number of the card to open. */ + + gchar *audio_filename; /* File name for the audio device. */ + int audio_fd; /* File descriptor for the audio device. */ + + gchar *control_filename; /* File name for the control device. */ + int control_fd; /* File descriptor for the control + device. */ + + guint64 scr; /* The current System Reference Clock value + for the audio stream. */ + + gboolean digital_pcm; /* Should PCM use the digital or the + analog output? */ + + Dxr3AudioSinkMode mode; /* The current sound output mode. */ + + gint rate; /* The sampling rate for PCM sound. */ + + ac3_padder *padder; /* AC3 to SPDIF padder object. */ + + GstClock *clock; /* The clock for this element. */ +}; + + +struct _Dxr3AudioSinkClass { + GstElementClass parent_class; + + /* signals */ + void (*flushed) (Dxr3AudioSink *sink); +}; + + +extern GType dxr3audiosink_get_type (void); +extern gboolean dxr3audiosink_factory_init (GstPlugin *plugin); + +G_END_DECLS + +#endif /* __DXR3AUDIOINK_H__ */ diff --git a/sys/dxr3/dxr3common.h b/sys/dxr3/dxr3common.h new file mode 100644 index 00000000..06af09dd --- /dev/null +++ b/sys/dxr3/dxr3common.h @@ -0,0 +1,39 @@ +/* GStreamer + * Copyright (C) 2003 Martin Soto <martinsoto@users.sourceforge.net> + * + * dxr3videosink.h: Common declarations for the DXR3 plugin. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ + +#ifndef __DXR3COMMON_H__ +#define __DXR3COMMON_H__ + +/* Convert from GStreamer time to MPEG time. */ +#define GSTTIME_TO_MPEGTIME(time) (((time) * 9) / (GST_MSECOND/10)) + + +/* The em8300 driver expresses time in units of 1/45000 of second. */ + +/* Convert from MPEG time to em8300 time. */ +#define MPEGTIME_TO_DXRTIME(time) ((guint32) ((time) >> 1)) + +/* Convert from em8300 time to GStreamer time. */ +#define DXRTIME_TO_GSTTIME(time) \ + ((GstClockTime) ((double) (time) * (((double) GST_MSECOND) / 45.0))) + + +#endif /* __DXR3COMMON_H__ */ diff --git a/sys/dxr3/dxr3init.c b/sys/dxr3/dxr3init.c new file mode 100644 index 00000000..aa090b21 --- /dev/null +++ b/sys/dxr3/dxr3init.c @@ -0,0 +1,51 @@ +/* GStreamer + * Copyright (C) 2003 Martin Soto <martinsoto@users.sourceforge.net> + * + * dxr3init.c: DXR3 plugin initialization. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ + +#include "dxr3videosink.h" +#include "dxr3spusink.h" +#include "dxr3audiosink.h" + + +static gboolean +plugin_init (GModule *module, GstPlugin *plugin) +{ + gboolean ret; + + ret = dxr3videosink_factory_init (plugin); + g_return_val_if_fail (ret == TRUE, FALSE); + + ret = dxr3spusink_factory_init (plugin); + g_return_val_if_fail (ret == TRUE, FALSE); + + ret = dxr3audiosink_factory_init (plugin); + g_return_val_if_fail (ret == TRUE, FALSE); + + return TRUE; +} + + +GstPluginDesc plugin_desc = { + GST_VERSION_MAJOR, + GST_VERSION_MINOR, + "dxr3", + plugin_init +}; + diff --git a/sys/dxr3/dxr3marshal.list b/sys/dxr3/dxr3marshal.list new file mode 100644 index 00000000..7b99b1ef --- /dev/null +++ b/sys/dxr3/dxr3marshal.list @@ -0,0 +1,5 @@ +VOID:VOID +VOID:BOOLEAN +VOID:POINTER +VOID:UINT,UINT,UINT,UINT,UINT,UINT + diff --git a/sys/dxr3/dxr3spusink.c b/sys/dxr3/dxr3spusink.c new file mode 100644 index 00000000..0d46b4c9 --- /dev/null +++ b/sys/dxr3/dxr3spusink.c @@ -0,0 +1,560 @@ +/* GStreamer + * Copyright (C) 2003 Martin Soto <martinsoto@users.sourceforge.net> + * + * dxr3spusink.h: Subpicture sink for em8300 based cards. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ + +#include <errno.h> +#include <string.h> +#include <fcntl.h> +#include <unistd.h> +#include <sys/ioctl.h> + +#include <linux/em8300.h> + +#include <gst/gst.h> + +#include "dxr3spusink.h" +#include "dxr3marshal.h" + +#include "dxr3common.h" + + +/* ElementFactory information. */ +static GstElementDetails dxr3spusink_details = { + "dxr3/Hollywood+ mpeg decoder board subpicture element", + "video/mpeg", + "GPL", + "Feeds subpicture information to Sigma Designs em8300 based boards", + VERSION, + "Martin Soto <martinsoto@users.sourceforge.net>", + "(C) 2003", +}; + + +/* Dxr3SpuSink signals and args */ +enum { + SET_CLUT_SIGNAL, + HIGHLIGHT_ON_SIGNAL, + HIGHLIGHT_OFF_SIGNAL, + SIGNAL_FLUSHED, + LAST_SIGNAL +}; + +enum { + ARG_0, +}; + + +GST_PAD_TEMPLATE_FACTORY (dxr3spusink_sink_factory, + "sink", + GST_PAD_SINK, + GST_PAD_ALWAYS, + GST_CAPS_NEW ( + "dxr3spusink_sink", + "video/mpeg", + NULL + ) +); + + +GST_PAD_EVENT_MASK_FUNCTION (dxr3spusink_get_event_mask, + { GST_EVENT_FLUSH, 0 }, + { GST_EVENT_DISCONTINUOUS, 0 }, + { GST_EVENT_NEW_MEDIA, 0 }, + { GST_EVENT_EOS, 0 } +) + + +static void dxr3spusink_class_init (Dxr3SpuSinkClass *klass); +static void dxr3spusink_init (Dxr3SpuSink *dxr3spusink); + +static void dxr3spusink_set_property (GObject *object, + guint prop_id, + const GValue *value, + GParamSpec *pspec); +static void dxr3spusink_get_property (GObject *object, + guint prop_id, + GValue *value, + GParamSpec *pspec); + +static gboolean dxr3spusink_open (Dxr3SpuSink *sink); +static void dxr3spusink_close (Dxr3SpuSink *sink); +static void dxr3spusink_set_clock (GstElement *element, + GstClock *clock); + +static gboolean dxr3spusink_handle_event (GstPad *pad, GstEvent *event); +static void dxr3spusink_chain (GstPad *pad,GstBuffer *buf); + +static GstElementStateReturn dxr3spusink_change_state (GstElement *element); + +/* static void dxr3spusink_wait (Dxr3SpuSink *sink, */ +/* GstClockTime time); */ + +static void dxr3spusink_set_clut (Dxr3SpuSink *sink, + const guint32 *clut); +static void dxr3spusink_highlight_on (Dxr3SpuSink *sink, + unsigned palette, + unsigned sx, unsigned sy, + unsigned ex, unsigned ey, + unsigned pts); +static void dxr3spusink_highlight_off (Dxr3SpuSink *sink); + +static void dxr3spusink_flushed (Dxr3SpuSink *sink); + + +static GstElementClass *parent_class = NULL; +static guint dxr3spusink_signals[LAST_SIGNAL] = { 0 }; + + +GType +dxr3spusink_get_type (void) +{ + static GType dxr3spusink_type = 0; + + if (!dxr3spusink_type) { + static const GTypeInfo dxr3spusink_info = { + sizeof (Dxr3SpuSinkClass), + NULL, + NULL, + (GClassInitFunc)dxr3spusink_class_init, + NULL, + NULL, + sizeof (Dxr3SpuSink), + 0, + (GInstanceInitFunc)dxr3spusink_init, + }; + dxr3spusink_type = g_type_register_static (GST_TYPE_ELEMENT, + "Dxr3SpuSink", + &dxr3spusink_info, 0); + } + return dxr3spusink_type; +} + + +static void +dxr3spusink_class_init (Dxr3SpuSinkClass *klass) +{ + GObjectClass *gobject_class; + GstElementClass *gstelement_class; + + gobject_class = (GObjectClass*)klass; + gstelement_class = (GstElementClass*)klass; + + parent_class = g_type_class_ref (GST_TYPE_ELEMENT); + + dxr3spusink_signals[SET_CLUT_SIGNAL] = + g_signal_new ("set_clut", + G_TYPE_FROM_CLASS (klass), + G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, + G_STRUCT_OFFSET (Dxr3SpuSinkClass, set_clut), + NULL, NULL, + dxr3_marshal_VOID__POINTER, + G_TYPE_NONE, 1, + G_TYPE_POINTER); + + dxr3spusink_signals[HIGHLIGHT_ON_SIGNAL] = + g_signal_new ("highlight_on", + G_TYPE_FROM_CLASS (klass), + G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, + G_STRUCT_OFFSET (Dxr3SpuSinkClass, highlight_on), + NULL, NULL, + dxr3_marshal_VOID__UINT_UINT_UINT_UINT_UINT_UINT, + G_TYPE_NONE, 6, + G_TYPE_UINT, G_TYPE_UINT, G_TYPE_UINT, G_TYPE_UINT, + G_TYPE_UINT, G_TYPE_UINT); + + dxr3spusink_signals[HIGHLIGHT_OFF_SIGNAL] = + g_signal_new ("highlight_off", + G_TYPE_FROM_CLASS (klass), + G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, + G_STRUCT_OFFSET (Dxr3SpuSinkClass, highlight_off), + NULL, NULL, + dxr3_marshal_VOID__VOID, + G_TYPE_NONE, 0); + + dxr3spusink_signals[SIGNAL_FLUSHED] = + g_signal_new ("flushed", G_TYPE_FROM_CLASS (klass), + G_SIGNAL_RUN_LAST, + G_STRUCT_OFFSET (Dxr3SpuSinkClass, flushed), + NULL, NULL, + dxr3_marshal_VOID__VOID, + G_TYPE_NONE, 0); + + klass->set_clut = dxr3spusink_set_clut; + klass->highlight_on = dxr3spusink_highlight_on; + klass->highlight_off = dxr3spusink_highlight_off; + klass->flushed = dxr3spusink_flushed; + + gobject_class->set_property = dxr3spusink_set_property; + gobject_class->get_property = dxr3spusink_get_property; + + gstelement_class->change_state = dxr3spusink_change_state; + gstelement_class->set_clock = dxr3spusink_set_clock; +} + + +static void +dxr3spusink_init (Dxr3SpuSink *sink) +{ + GstPad *pad; + + pad = gst_pad_new_from_template ( + GST_PAD_TEMPLATE_GET (dxr3spusink_sink_factory), "sink"); + gst_element_add_pad (GST_ELEMENT (sink), pad); + gst_pad_set_chain_function (pad, dxr3spusink_chain); + + GST_FLAG_SET (GST_ELEMENT (sink), GST_ELEMENT_EVENT_AWARE); + gst_pad_set_event_function (pad, dxr3spusink_handle_event); + gst_pad_set_event_mask_function (pad, dxr3spusink_get_event_mask); + + sink->card_number = 0; + + sink->spu_filename = NULL; + sink->spu_fd = -1; + sink->control_filename = NULL; + sink->control_fd = -1; + + sink->clock = NULL; +} + + +static void +dxr3spusink_set_property (GObject *object, guint prop_id, + const GValue *value, GParamSpec *pspec) +{ + Dxr3SpuSink *sink; + + /* it's not null if we got it, but it might not be ours */ + sink = DXR3SPUSINK (object); + + switch (prop_id) { + default: + break; + } +} + + +static void +dxr3spusink_get_property (GObject *object, guint prop_id, + GValue *value, GParamSpec *pspec) +{ + Dxr3SpuSink *sink; + + /* it's not null if we got it, but it might not be ours */ + g_return_if_fail (GST_IS_DXR3SPUSINK (object)); + + sink = DXR3SPUSINK (object); + + switch (prop_id) { + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + break; + } +} + + +static gboolean +dxr3spusink_open (Dxr3SpuSink *sink) +{ + g_return_val_if_fail (!GST_FLAG_IS_SET (sink, + DXR3SPUSINK_OPEN), FALSE); + + /* Compute the name of the spu device file. */ + sink->spu_filename = g_strdup_printf ("/dev/em8300_sp-%d", + sink->card_number ); + + sink->spu_fd = open (sink->spu_filename, O_WRONLY); + if (sink->spu_fd < 0) { + gst_element_error (GST_ELEMENT (sink), + g_strconcat ("Error opening device file \"", + sink->spu_filename, "\": ", + g_strerror (errno), NULL)); + return FALSE; + } + + /* Open the control device. */ + sink->control_filename = g_strdup_printf ("/dev/em8300-%d", + sink->card_number ); + + sink->control_fd = open (sink->control_filename, O_WRONLY); + if (sink->control_fd < 0) { + gst_element_error (GST_ELEMENT (sink), + g_strconcat ("Error opening device file \"", + sink->control_filename, "\": ", + g_strerror (errno), NULL)); + return FALSE; + } + + GST_FLAG_SET (sink, DXR3SPUSINK_OPEN); + + return TRUE; +} + + +static void +dxr3spusink_close (Dxr3SpuSink *sink) +{ + g_return_if_fail (GST_FLAG_IS_SET (sink, DXR3SPUSINK_OPEN)); + + if (close (sink->spu_fd) != 0) { + gst_element_error (GST_ELEMENT (sink), + g_strconcat ("Error closing file \"", + sink->spu_filename, "\": ", + g_strerror (errno), NULL)); + return; + } + + if (close (sink->control_fd) != 0) + { + gst_element_error (GST_ELEMENT (sink), + g_strconcat ("Error closing file \"", + sink->control_filename, "\": ", + g_strerror (errno), NULL)); + return; + } + + GST_FLAG_UNSET (sink, DXR3SPUSINK_OPEN); + + free (sink->spu_filename); + sink->spu_filename = NULL; +} + + +static void +dxr3spusink_set_clock (GstElement *element, GstClock *clock) +{ + Dxr3SpuSink *src = DXR3SPUSINK (element); + + src->clock = clock; +} + + +static gboolean +dxr3spusink_handle_event (GstPad *pad, GstEvent *event) +{ + GstEventType type; + Dxr3SpuSink *sink; + + sink = DXR3SPUSINK (gst_pad_get_parent (pad)); + + type = event ? GST_EVENT_TYPE (event) : GST_EVENT_UNKNOWN; + + switch (type) { + case GST_EVENT_FLUSH: + if (sink->control_fd >= 0) { + int subdevice; + subdevice = EM8300_SUBDEVICE_SUBPICTURE; + ioctl (sink->control_fd, EM8300_IOCTL_FLUSH, &subdevice); + + /* FIXME: There should be a nicer way to do this, but I tried + everything and nothing else seems to really reset the video + fifo. */ +/* dxr3spusink_close (sink); */ +/* dxr3spusink_open (sink); */ + + /* Report the flush operation. */ + g_signal_emit (G_OBJECT (sink), + dxr3spusink_signals[SIGNAL_FLUSHED], 0); + } + break; + default: + gst_pad_event_default (pad, event); + break; + } + + return TRUE; +} + + +static void +dxr3spusink_chain (GstPad *pad, GstBuffer *buf) +{ + Dxr3SpuSink *sink; + gint bytes_written = 0; + + g_return_if_fail (pad != NULL); + g_return_if_fail (GST_IS_PAD (pad)); + g_return_if_fail (buf != NULL); + + sink = DXR3SPUSINK (gst_pad_get_parent (pad)); + + if (GST_IS_EVENT (buf)) { + dxr3spusink_handle_event (pad, GST_EVENT (buf)); + return; + } + + if (GST_FLAG_IS_SET (sink, DXR3SPUSINK_OPEN)) { + /* If we have PTS information for the SPU unit, register it now. + The card needs the PTS to be written *before* the actual data. */ + if (GST_BUFFER_TIMESTAMP (buf) != GST_CLOCK_TIME_NONE) { + guint pts = (guint) GSTTIME_TO_MPEGTIME (GST_BUFFER_TIMESTAMP (buf)); + ioctl (sink->spu_fd, EM8300_IOCTL_SPU_SETPTS, &pts); + } + + bytes_written = write (sink->spu_fd, GST_BUFFER_DATA (buf), + GST_BUFFER_SIZE (buf)); + if (bytes_written < GST_BUFFER_SIZE (buf)) { + fprintf (stderr, "dxr3spusink: Warning: %d bytes should be written," + " only %d bytes written\n", + GST_BUFFER_SIZE (buf), bytes_written); + } + } + + gst_buffer_unref (buf); +} + + +static GstElementStateReturn +dxr3spusink_change_state (GstElement *element) +{ + g_return_val_if_fail (GST_IS_DXR3SPUSINK (element), GST_STATE_FAILURE); + + switch (GST_STATE_TRANSITION (element)) { + case GST_STATE_NULL_TO_READY: + if (!GST_FLAG_IS_SET (element, DXR3SPUSINK_OPEN)) { + if (!dxr3spusink_open (DXR3SPUSINK (element))) { + return GST_STATE_FAILURE; + } + } + break; + case GST_STATE_READY_TO_PAUSED: + break; + case GST_STATE_PAUSED_TO_PLAYING: + break; + case GST_STATE_PLAYING_TO_PAUSED: + break; + case GST_STATE_PAUSED_TO_READY: + break; + case GST_STATE_READY_TO_NULL: + if (GST_FLAG_IS_SET (element, DXR3SPUSINK_OPEN)) { + dxr3spusink_close (DXR3SPUSINK (element)); + } + break; + } + + if (GST_ELEMENT_CLASS (parent_class)->change_state) { + return GST_ELEMENT_CLASS (parent_class)->change_state (element); + } + + return GST_STATE_SUCCESS; +} + +#if 0 +/** + * dxr3spusink_wait: + * Make the sink wait the specified amount of time. + */ +static void +dxr3spusink_wait (Dxr3SpuSink *sink, GstClockTime time) +{ + GstClockID id; + GstClockTimeDiff jitter; + GstClockReturn ret; + GstClockTime current_time = gst_clock_get_time (sink->clock); + + id = gst_clock_new_single_shot_id (sink->clock, current_time + time); + ret = gst_clock_id_wait (id, &jitter); + gst_clock_id_free (id); +} +#endif + +/** + * dxr3spusink_set_clut: + * + * Set a new SPU color lookup table (clut) in the dxr3 card. + */ +static void +dxr3spusink_set_clut (Dxr3SpuSink *sink, const guint32 *clut) +{ + guint32 clut_fixed[16]; + int i; + + /* Fix the byte order of the table. */ + for (i=0; i<16; i++) { + clut_fixed[i] = GUINT32_TO_LE (clut[i]); + } + + if (ioctl (sink->spu_fd, EM8300_IOCTL_SPU_SETPALETTE, clut_fixed)) + fprintf (stderr, "dxr3spusink: failed to set CLUT (%s)\n", + strerror (errno)); +} + + +static void +dxr3spusink_highlight_on (Dxr3SpuSink *sink, unsigned palette, + unsigned sx, unsigned sy, + unsigned ex, unsigned ey, + unsigned pts) +{ + em8300_button_t btn; + + btn.color = palette >> 16; + btn.contrast = palette; + btn.left = sx; + btn.top = sy; + btn.right = ex; + btn.bottom = ey; + + if (ioctl (sink->spu_fd, EM8300_IOCTL_SPU_BUTTON, &btn)) { + fprintf (stderr, "dxr3spusink: failed to set spu button (%s)\n", + strerror (errno)); + } +} + + +static void +dxr3spusink_highlight_off (Dxr3SpuSink *sink) +{ + if (ioctl (sink->spu_fd, EM8300_IOCTL_SPU_BUTTON, NULL)) { + fprintf (stderr, "dxr3spusink: failed to set spu button (%s)\n", + strerror (errno)); + } +} + + +/** + * dxr3spusink_flushed: + * + * Default do nothing implementation for the "flushed" signal. The + * "flushed" signal will be fired right after flushing the hardware + * queues due to a received flush event + */ +static void +dxr3spusink_flushed (Dxr3SpuSink *sink) +{ + /* Do nothing. */ +} + + +extern gboolean +dxr3spusink_factory_init (GstPlugin *plugin) +{ + GstElementFactory *factory; + + factory = gst_element_factory_new ("dxr3spusink", + GST_TYPE_DXR3SPUSINK, + &dxr3spusink_details); + g_return_val_if_fail (factory != NULL, FALSE); + gst_element_factory_add_pad_template (factory, + GST_PAD_TEMPLATE_GET (dxr3spusink_sink_factory)); + + gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (factory)); + + return TRUE; +} diff --git a/sys/dxr3/dxr3spusink.h b/sys/dxr3/dxr3spusink.h new file mode 100644 index 00000000..e2551714 --- /dev/null +++ b/sys/dxr3/dxr3spusink.h @@ -0,0 +1,87 @@ +/* GStreamer + * Copyright (C) 2003 Martin Soto <martinsoto@users.sourceforge.net> + * + * dxr3spusink.h: Subpicture sink for em8300 based cards. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ + +#ifndef __DXR3SPUSINK_H__ +#define __DXR3SPUSINK_H__ + +#include <gst/gst.h> + +G_BEGIN_DECLS + + +#define GST_TYPE_DXR3SPUSINK \ + (dxr3spusink_get_type()) +#define DXR3SPUSINK(obj) \ + (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_DXR3SPUSINK,Dxr3SpuSink)) +#define DXR3SPUSINK_CLASS(klass) \ + (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_DXR3SPUSINK,Dxr3SpuSinkClass)) +#define GST_IS_DXR3SPUSINK(obj) \ + (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_DXR3SPUSINK)) +#define GST_IS_DXR3SPUSINK_CLASS(obj) \ + (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_DXR3SPUSINK)) + + +typedef struct _Dxr3SpuSink Dxr3SpuSink; +typedef struct _Dxr3SpuSinkClass Dxr3SpuSinkClass; + + +typedef enum { + DXR3SPUSINK_OPEN = GST_ELEMENT_FLAG_LAST, + DXR3SPUSINK_FLAG_LAST = GST_ELEMENT_FLAG_LAST + 2, +} Dxr3SpuSinkFlags; + + +struct _Dxr3SpuSink { + GstElement element; + + int card_number; /* The number of the card to open. */ + + gchar *spu_filename; /* File name for the spu device. */ + int spu_fd; /* File descriptor for the spu device. */ + + gchar *control_filename; /* File name for the control device. */ + int control_fd; /* File descriptor for the control + device. */ + + GstClock *clock; /* The clock for this element. */ +}; + + +struct _Dxr3SpuSinkClass { + GstElementClass parent_class; + + /* Signals */ + void (*set_clut) (Dxr3SpuSink *sink, const guint32 *clut); + void (*highlight_on) (Dxr3SpuSink *sink, unsigned palette, + unsigned sx, unsigned sy, + unsigned ex, unsigned ey, + unsigned pts); + void (*highlight_off) (Dxr3SpuSink *sink); + void (*flushed) (Dxr3SpuSink *sink); +}; + + +extern GType dxr3spusink_get_type (void); +extern gboolean dxr3spusink_factory_init (GstPlugin *plugin); + +G_END_DECLS + +#endif /* __DXR3SPUSINK_H__ */ diff --git a/sys/dxr3/dxr3videosink.c b/sys/dxr3/dxr3videosink.c new file mode 100644 index 00000000..ac858d81 --- /dev/null +++ b/sys/dxr3/dxr3videosink.c @@ -0,0 +1,762 @@ +/* GStreamer + * Copyright (C) 2003 Martin Soto <martinsoto@users.sourceforge.net> + * + * dxr3videosink.c: Video sink for em8300 based cards. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ + +#include <errno.h> +#include <string.h> +#include <fcntl.h> +#include <unistd.h> +#include <sys/ioctl.h> + +#include <linux/em8300.h> + +#include <gst/gst.h> + +#include "dxr3videosink.h" +#include "dxr3marshal.h" + +#include "dxr3common.h" + + +/* ElementFactory information. */ +static GstElementDetails dxr3videosink_details = { + "dxr3/Hollywood+ mpeg decoder board video element", + "video/mpeg", + "GPL", + "Feeds MPEG2 video to Sigma Designs em8300 based boards", + VERSION, + "Martin Soto <martinsoto@users.sourceforge.net>", + "(C) 2003", +}; + + +/* Dxr3VideoSink signals and args */ +enum { + SIGNAL_FLUSHED, + LAST_SIGNAL +}; + +enum { + ARG_0, +}; + +/* Possible states for the MPEG start code scanner. */ +enum { + SCAN_STATE_WAITING, /* Waiting for a code. */ + SCAN_STATE_0, /* 0 seen. */ + SCAN_STATE_00, /* 00 seen. */ + SCAN_STATE_001 /* 001 seen. */ +}; + +/* Possible states for the MPEG sequence parser. */ +enum { + PARSE_STATE_WAITING, /* Waiting for the start of a sequence. */ + PARSE_STATE_START, /* Start of sequence seen. */ + PARSE_STATE_PICTURE, /* Picture start seen. */ +}; + + +/* Relevant mpeg start codes. */ +#define START_CODE_PICTURE 0x00 +#define START_CODE_SEQUENCE_HEADER 0xB3 +#define START_CODE_SEQUENCE_END 0xB7 + + +GST_PAD_TEMPLATE_FACTORY (dxr3videosink_sink_factory, + "sink", + GST_PAD_SINK, + GST_PAD_ALWAYS, + GST_CAPS_NEW ( + "dxr3videosink_sink", + "video/mpeg", + "mpegversion", GST_PROPS_LIST ( + GST_PROPS_INT (1), + GST_PROPS_INT (2) + ), + "systemstream", GST_PROPS_BOOLEAN (FALSE) + ) +) + + +GST_PAD_EVENT_MASK_FUNCTION (dxr3videosink_get_event_mask, + { GST_EVENT_FLUSH, 0 }, + { GST_EVENT_DISCONTINUOUS, 0 }, + { GST_EVENT_NEW_MEDIA, 0 }, + { GST_EVENT_EOS, 0 } +) + + +static void dxr3videosink_class_init (Dxr3VideoSinkClass *klass); +static void dxr3videosink_init (Dxr3VideoSink *dxr3videosink); + +static void dxr3videosink_set_property (GObject *object, + guint prop_id, + const GValue *value, + GParamSpec *pspec); +static void dxr3videosink_get_property (GObject *object, + guint prop_id, + GValue *value, + GParamSpec *pspec); + +static gboolean dxr3videosink_open (Dxr3VideoSink *sink); +static void dxr3videosink_close (Dxr3VideoSink *sink); +static void dxr3videosink_set_clock (GstElement *element, + GstClock *clock); + +static void dxr3videosink_reset_parser (Dxr3VideoSink *sink); +static int dxr3videosink_next_start_code (Dxr3VideoSink *sink); +static void dxr3videosink_discard_data (Dxr3VideoSink *sink, + guint cut); +static void dxr3videosink_write_data (Dxr3VideoSink *sink, + guint cut); +static void dxr3videosink_parse_data (Dxr3VideoSink *sink); + +static gboolean dxr3videosink_handle_event (GstPad *pad, GstEvent *event); +static void dxr3videosink_chain (GstPad *pad,GstBuffer *buf); + +static GstElementStateReturn dxr3videosink_change_state (GstElement *element); + +/* static void dxr3videosink_wait (Dxr3VideoSink *sink, */ +/* GstClockTime time); */ +static int dxr3videosink_mvcommand (Dxr3VideoSink *sink, + int command); + +static void dxr3videosink_flushed (Dxr3VideoSink *sink); + +static GstElementClass *parent_class = NULL; +static guint dxr3videosink_signals[LAST_SIGNAL] = { 0 }; + + +extern GType +dxr3videosink_get_type (void) +{ + static GType dxr3videosink_type = 0; + + if (!dxr3videosink_type) { + static const GTypeInfo dxr3videosink_info = { + sizeof (Dxr3VideoSinkClass), + NULL, + NULL, + (GClassInitFunc) dxr3videosink_class_init, + NULL, + NULL, + sizeof (Dxr3VideoSink), + 0, + (GInstanceInitFunc) dxr3videosink_init, + }; + dxr3videosink_type = g_type_register_static (GST_TYPE_ELEMENT, + "Dxr3VideoSink", + &dxr3videosink_info, 0); + } + + return dxr3videosink_type; +} + + +static void +dxr3videosink_class_init (Dxr3VideoSinkClass *klass) +{ + GObjectClass *gobject_class; + GstElementClass *gstelement_class; + + gobject_class = (GObjectClass*)klass; + gstelement_class = (GstElementClass*)klass; + + parent_class = g_type_class_ref (GST_TYPE_ELEMENT); + + dxr3videosink_signals[SIGNAL_FLUSHED] = + g_signal_new ("flushed", G_TYPE_FROM_CLASS (klass), + G_SIGNAL_RUN_LAST, + G_STRUCT_OFFSET (Dxr3VideoSinkClass, flushed), + NULL, NULL, + dxr3_marshal_VOID__VOID, + G_TYPE_NONE, 0); + + klass->flushed = dxr3videosink_flushed; + + gobject_class->set_property = dxr3videosink_set_property; + gobject_class->get_property = dxr3videosink_get_property; + + gstelement_class->change_state = dxr3videosink_change_state; + gstelement_class->set_clock = dxr3videosink_set_clock; +} + + +static void +dxr3videosink_init (Dxr3VideoSink *sink) +{ + GstPad *pad; + + pad = gst_pad_new_from_template ( + GST_PAD_TEMPLATE_GET (dxr3videosink_sink_factory), "sink"); + gst_element_add_pad (GST_ELEMENT (sink), pad); + gst_pad_set_chain_function (pad, dxr3videosink_chain); + + GST_FLAG_SET (GST_ELEMENT (sink), GST_ELEMENT_EVENT_AWARE); + gst_pad_set_event_function (pad, dxr3videosink_handle_event); + gst_pad_set_event_mask_function (pad, dxr3videosink_get_event_mask); + + sink->card_number = 0; + + sink->video_filename = NULL; + sink->video_fd = -1; + sink->control_filename = NULL; + sink->control_fd = -1; + + sink->clock = NULL; + + sink->last_ts = GST_CLOCK_TIME_NONE; + + sink->cur_buf = NULL; + dxr3videosink_reset_parser (sink); +} + + +static void +dxr3videosink_set_property (GObject *object, guint prop_id, + const GValue *value, GParamSpec *pspec) +{ + Dxr3VideoSink *sink; + + /* it's not null if we got it, but it might not be ours */ + sink = DXR3VIDEOSINK (object); + + switch (prop_id) { + default: + break; + } +} + + +static void +dxr3videosink_get_property (GObject *object, guint prop_id, + GValue *value, GParamSpec *pspec) +{ + Dxr3VideoSink *sink; + + /* it's not null if we got it, but it might not be ours */ + g_return_if_fail (GST_IS_DXR3VIDEOSINK (object)); + + sink = DXR3VIDEOSINK (object); + + switch (prop_id) { + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); + break; + } +} + + +static gboolean +dxr3videosink_open (Dxr3VideoSink *sink) +{ + g_return_val_if_fail (!GST_FLAG_IS_SET (sink, + DXR3VIDEOSINK_OPEN), FALSE); + + /* Compute the name of the video device file. */ + sink->video_filename = g_strdup_printf ("/dev/em8300_mv-%d", + sink->card_number ); + + sink->video_fd = open (sink->video_filename, O_WRONLY); + if (sink->video_fd < 0) { + gst_element_error (GST_ELEMENT (sink), + g_strconcat ("Error opening device file \"", + sink->video_filename, "\": ", + g_strerror (errno), NULL)); + return FALSE; + } + + /* Open the control device. */ + sink->control_filename = g_strdup_printf ("/dev/em8300-%d", + sink->card_number ); + + sink->control_fd = open (sink->control_filename, O_WRONLY); + if (sink->control_fd < 0) { + gst_element_error (GST_ELEMENT (sink), + g_strconcat ("Error opening device file \"", + sink->control_filename, "\": ", + g_strerror (errno), NULL)); + return FALSE; + } + + GST_FLAG_SET (sink, DXR3VIDEOSINK_OPEN); + + return TRUE; +} + + +static void +dxr3videosink_close (Dxr3VideoSink *sink) +{ + g_return_if_fail (GST_FLAG_IS_SET (sink, DXR3VIDEOSINK_OPEN)); + + if (close (sink->video_fd) != 0) + { + gst_element_error (GST_ELEMENT (sink), + g_strconcat ("Error closing file \"", + sink->video_filename, "\": ", + g_strerror (errno), NULL)); + return; + } + + if (close (sink->control_fd) != 0) + { + gst_element_error (GST_ELEMENT (sink), + g_strconcat ("Error closing file \"", + sink->control_filename, "\": ", + g_strerror (errno), NULL)); + return; + } + + GST_FLAG_UNSET (sink, DXR3VIDEOSINK_OPEN); + + free (sink->video_filename); + sink->video_filename = NULL; +} + + +static void +dxr3videosink_set_clock (GstElement *element, GstClock *clock) +{ + Dxr3VideoSink *src = DXR3VIDEOSINK (element); + + src->clock = clock; +} + + +static void +dxr3videosink_reset_parser (Dxr3VideoSink *sink) +{ + if (sink->cur_buf != NULL) { + gst_buffer_unref (sink->cur_buf); + sink->cur_buf = NULL; + } + sink->cur_ts = GST_CLOCK_TIME_NONE; + + sink->scan_state = SCAN_STATE_WAITING; + sink->scan_pos = 0; + + sink->parse_state = PARSE_STATE_WAITING; +} + + +static int +dxr3videosink_next_start_code (Dxr3VideoSink *sink) +{ + guchar c; + + g_return_val_if_fail (sink->cur_buf != NULL, -1); + + while (sink->scan_pos < GST_BUFFER_SIZE (sink->cur_buf)) { + c = (GST_BUFFER_DATA (sink->cur_buf))[sink->scan_pos]; + + switch (sink->scan_state) { + case SCAN_STATE_WAITING: + if (c == 0x00) { + sink->scan_state = SCAN_STATE_0; + } + break; + case SCAN_STATE_0: + if (c == 0x00) { + sink->scan_state = SCAN_STATE_00; + } + else { + sink->scan_state = SCAN_STATE_WAITING; + } + break; + case SCAN_STATE_00: + if (c == 0x01) { + sink->scan_state = SCAN_STATE_001; + } + else if (c != 0x00) { + sink->scan_state = SCAN_STATE_WAITING; + } + break; + case SCAN_STATE_001: + sink->scan_pos++; + sink->scan_state = SCAN_STATE_WAITING; + return c; + } + + sink->scan_pos++; + } + + return -1; +} + + +static void +dxr3videosink_discard_data (Dxr3VideoSink *sink, guint cut) +{ + GstBuffer *sub; + guint size; + + g_return_if_fail (sink->cur_buf != NULL); + g_assert (cut <= sink->scan_pos); + + size = sink->scan_pos - cut; + + g_return_if_fail (size <= GST_BUFFER_SIZE (sink->cur_buf)); + + if (GST_BUFFER_SIZE (sink->cur_buf) == size) { + gst_buffer_unref (sink->cur_buf); + sink->cur_buf = NULL; + } + else { + sub = gst_buffer_create_sub (sink->cur_buf, size, + GST_BUFFER_SIZE (sink->cur_buf) + - size); + gst_buffer_unref (sink->cur_buf); + sink->cur_buf = sub; + } + + sink->scan_state = SCAN_STATE_WAITING; + sink->scan_pos = cut; + + sink->cur_ts = GST_CLOCK_TIME_NONE; +} + + +static void +dxr3videosink_write_data (Dxr3VideoSink *sink, guint cut) +{ + guint size, written; + guint8 *data; + + g_return_if_fail (sink->cur_buf != NULL); + + if (GST_FLAG_IS_SET (sink, DXR3VIDEOSINK_OPEN)) { + if (sink->cur_ts != GST_CLOCK_TIME_NONE) { + guint pts; + +/* fprintf (stderr, "------ Video Time %.04f\n", */ +/* (double) sink->cur_ts / GST_SECOND); */ + + pts = (guint) GSTTIME_TO_MPEGTIME (sink->cur_ts); + ioctl (sink->video_fd, EM8300_IOCTL_VIDEO_SETPTS, &pts); + sink->cur_ts = GST_CLOCK_TIME_NONE; + } + + data = GST_BUFFER_DATA (sink->cur_buf); + size = sink->scan_pos - cut; + + g_assert (size <= GST_BUFFER_SIZE (sink->cur_buf)); + + /* We should always write data that corresponds to whole MPEG + video sintactical elements. They should always start with an + MPEG start code. */ + g_assert (size >= 4 && data[0] == 0 && data[1] == 0 && data[2] == 1); + + while (size > 0) { + written = write (sink->video_fd, data, size); + if (written < 0) { + gst_element_error (GST_ELEMENT (sink), "Writing to %s: %s", + sink->video_filename, strerror (errno)); + break; + } + size = size - written; + data = data + written; + }; + } + + dxr3videosink_discard_data (sink, cut); +} + + +static void +dxr3videosink_parse_data (Dxr3VideoSink *sink) +{ + int code; + + /* Timestamp handling assumes that timestamps are associated to + sequence starts. This seems to be the case, at least for + DVDs. */ + + code = dxr3videosink_next_start_code (sink); + while (code >= 0) { + switch (sink->parse_state) { + + case PARSE_STATE_WAITING: + if (code == START_CODE_SEQUENCE_HEADER) { + dxr3videosink_discard_data (sink, 4); + sink->parse_state = PARSE_STATE_START; + sink->cur_ts = sink->last_ts; + } + break; + + case PARSE_STATE_START: + switch (code) { + case START_CODE_SEQUENCE_HEADER: + dxr3videosink_discard_data (sink, 4); + sink->cur_ts = sink->last_ts; + break; + case START_CODE_SEQUENCE_END: + dxr3videosink_discard_data (sink, 0); + sink->parse_state = PARSE_STATE_WAITING; + break; + case START_CODE_PICTURE: + sink->parse_state = PARSE_STATE_PICTURE; + break; + } + break; + + case PARSE_STATE_PICTURE: + switch (code) { + case START_CODE_SEQUENCE_HEADER: + dxr3videosink_write_data (sink, 4); + sink->parse_state = PARSE_STATE_START; + sink->cur_ts = sink->last_ts; + break; + case START_CODE_SEQUENCE_END: + dxr3videosink_write_data (sink, 0); + sink->parse_state = PARSE_STATE_WAITING; + break; + case START_CODE_PICTURE: + dxr3videosink_write_data (sink, 4); + break; + } + break; + + } + + code = dxr3videosink_next_start_code (sink); + } + + if (sink->parse_state == PARSE_STATE_WAITING) { + dxr3videosink_discard_data (sink, 0); + } +} + + +static gboolean +dxr3videosink_handle_event (GstPad *pad, GstEvent *event) +{ + GstEventType type; + Dxr3VideoSink *sink; + + sink = DXR3VIDEOSINK (gst_pad_get_parent (pad)); + + type = event ? GST_EVENT_TYPE (event) : GST_EVENT_UNKNOWN; + + switch (type) { + case GST_EVENT_EMPTY: + //fprintf (stderr, "++++++ Video empty event\n"); + { + /* FIXME: Handle this with a discontinuity or something. */ + /* Write an MPEG2 sequence end code, to ensure that the card + actually displays the last picture. Apparently some DVDs are + encoded without proper sequence end codes. */ + static guint8 sec[4] = { 0x00, 0x00, 0x01, 0xb7 }; + + if (sink->cur_buf != NULL) { + dxr3videosink_write_data (sink, 0); + } + + write (sink->video_fd, &sec, 4); + } + break; + + case GST_EVENT_DISCONTINUOUS: + //fprintf (stderr, "++++++ Video discont event\n"); + { + gint64 time; + gboolean has_time; + unsigned cur_scr, mpeg_scr, diff; + + has_time = gst_event_discont_get_value (event, + GST_FORMAT_TIME, + &time); + if (has_time) { +/* fprintf (stderr, "^^^^^^ Discontinuous event has time %.4f\n", */ +/* (double) time / GST_SECOND); */ + + /* If the SCR in the card is way off, fix it. */ + ioctl (sink->control_fd, EM8300_IOCTL_SCR_GET, &cur_scr); + mpeg_scr = MPEGTIME_TO_DXRTIME (GSTTIME_TO_MPEGTIME (time)); + + diff = cur_scr > mpeg_scr ? cur_scr - mpeg_scr : mpeg_scr - cur_scr; + if (diff > 1800) { + unsigned zero = 0; +/* fprintf (stderr, "====== Adjusting SCR from video\n"); */ + + ioctl (sink->control_fd, EM8300_IOCTL_SCR_SET, &zero); + ioctl (sink->control_fd, EM8300_IOCTL_SCR_SET, &mpeg_scr); + } + } + else { +/* fprintf (stderr, "^^^^^^ Discontinuous event has no time\n"); */ + } + } + break; + + case GST_EVENT_FLUSH: + dxr3videosink_reset_parser (sink); + break; + + default: + gst_pad_event_default (pad, event); + break; + } + + return TRUE; +} + + +static void +dxr3videosink_chain (GstPad *pad, GstBuffer *buf) +{ + Dxr3VideoSink *sink; + GstBuffer *merged; + + g_return_if_fail (pad != NULL); + g_return_if_fail (GST_IS_PAD (pad)); + g_return_if_fail (buf != NULL); + + sink = DXR3VIDEOSINK (gst_pad_get_parent (pad)); + + if (GST_IS_EVENT (buf)) { + dxr3videosink_handle_event (pad, GST_EVENT (buf)); + return; + } + +/* fprintf (stderr, "^^^^^^ Video block\n"); */ + + if (sink->cur_buf == NULL) { + sink->cur_buf = buf; + } + else { + merged = gst_buffer_merge (sink->cur_buf, buf); + gst_buffer_unref (sink->cur_buf); + gst_buffer_unref (buf); + sink->cur_buf = merged; + } + + sink->last_ts = GST_BUFFER_TIMESTAMP (buf); + + dxr3videosink_parse_data (sink); +} + + +static GstElementStateReturn +dxr3videosink_change_state (GstElement *element) +{ + g_return_val_if_fail (GST_IS_DXR3VIDEOSINK (element), GST_STATE_FAILURE); + + switch (GST_STATE_TRANSITION (element)) { + case GST_STATE_NULL_TO_READY: + if (!GST_FLAG_IS_SET (element, DXR3VIDEOSINK_OPEN)) { + if (!dxr3videosink_open (DXR3VIDEOSINK (element))) { + return GST_STATE_FAILURE; + } + } + break; + case GST_STATE_READY_TO_PAUSED: + dxr3videosink_mvcommand (DXR3VIDEOSINK (element), MVCOMMAND_PAUSE); + break; + case GST_STATE_PAUSED_TO_PLAYING: + dxr3videosink_mvcommand (DXR3VIDEOSINK (element), MVCOMMAND_START); + break; + case GST_STATE_PLAYING_TO_PAUSED: + dxr3videosink_mvcommand (DXR3VIDEOSINK (element), MVCOMMAND_PAUSE); + break; + case GST_STATE_PAUSED_TO_READY: + dxr3videosink_mvcommand (DXR3VIDEOSINK (element), MVCOMMAND_STOP); + break; + case GST_STATE_READY_TO_NULL: + if (GST_FLAG_IS_SET (element, DXR3VIDEOSINK_OPEN)) { + dxr3videosink_close (DXR3VIDEOSINK (element)); + } + break; + } + + if (GST_ELEMENT_CLASS (parent_class)->change_state) { + return GST_ELEMENT_CLASS (parent_class)->change_state (element); + } + + return GST_STATE_SUCCESS; +} + +#if 0 +/** + * dxr3videosink_wait: + * Make the sink wait the specified amount of time. + */ +static void +dxr3videosink_wait (Dxr3VideoSink *sink, GstClockTime time) +{ + GstClockID id; + GstClockTimeDiff jitter; + GstClockReturn ret; + GstClockTime current_time = gst_clock_get_time (sink->clock); + + id = gst_clock_new_single_shot_id (sink->clock, current_time + time); + ret = gst_clock_id_wait (id, &jitter); + gst_clock_id_free (id); +} +#endif + +/** + * dxr3videosink_mvcommand + * + * Send an MVCOMMAND to the card. + */ +static int +dxr3videosink_mvcommand (Dxr3VideoSink *sink, int command) +{ + em8300_register_t regs; + + regs.microcode_register = 1; + regs.reg = 0; + regs.val = command; + + return ioctl (sink->control_fd, EM8300_IOCTL_WRITEREG, ®s); +} + + +/** + * dxr3videosink_flushed: + * + * Default do nothing implementation for the "flushed" signal. The + * "flushed" signal will be fired right after flushing the hardware + * queues due to a received flush event + */ +static void +dxr3videosink_flushed (Dxr3VideoSink *sink) +{ + /* Do nothing. */ +} + + +extern gboolean +dxr3videosink_factory_init (GstPlugin *plugin) +{ + GstElementFactory *factory; + + factory = gst_element_factory_new ("dxr3videosink", + GST_TYPE_DXR3VIDEOSINK, + &dxr3videosink_details); + g_return_val_if_fail (factory != NULL, FALSE); + gst_element_factory_add_pad_template (factory, + GST_PAD_TEMPLATE_GET (dxr3videosink_sink_factory)); + + gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (factory)); + + return TRUE; +} diff --git a/sys/dxr3/dxr3videosink.h b/sys/dxr3/dxr3videosink.h new file mode 100644 index 00000000..b0e5cadf --- /dev/null +++ b/sys/dxr3/dxr3videosink.h @@ -0,0 +1,97 @@ +/* GStreamer + * Copyright (C) 2003 Martin Soto <martinsoto@users.sourceforge.net> + * + * dxr3videosink.h: Video sink for em8300 based cards. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ + +#ifndef __DXR3VIDEOSINK_H__ +#define __DXR3VIDEOSINK_H__ + +#include <gst/gst.h> + +G_BEGIN_DECLS + + +#define GST_TYPE_DXR3VIDEOSINK \ + (dxr3videosink_get_type()) +#define DXR3VIDEOSINK(obj) \ + (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_DXR3VIDEOSINK,Dxr3VideoSink)) +#define DXR3VIDEOSINK_CLASS(klass) \ + (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_DXR3VIDEOSINK,Dxr3VideoSinkClass)) +#define GST_IS_DXR3VIDEOSINK(obj) \ + (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_DXR3VIDEOSINK)) +#define GST_IS_DXR3VIDEOSINK_CLASS(obj) \ + (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_DXR3VIDEOSINK)) + + +typedef struct _Dxr3VideoSink Dxr3VideoSink; +typedef struct _Dxr3VideoSinkClass Dxr3VideoSinkClass; + + +typedef enum { + DXR3VIDEOSINK_OPEN = GST_ELEMENT_FLAG_LAST, + DXR3VIDEOSINK_FLAG_LAST = GST_ELEMENT_FLAG_LAST + 2, +} Dxr3VideoSinkFlags; + + +struct _Dxr3VideoSink { + GstElement element; + + int card_number; /* The number of the card to open. */ + + gchar *video_filename; /* File name for the video device. */ + int video_fd; /* File descriptor for the video device. */ + + gchar *control_filename; /* File name for the control device. */ + int control_fd; /* File descriptor for the control + device. */ + + GstClock *clock; /* The clock for this element. */ + + GstClockTime last_ts; /* Last timestamp received. */ + + GstBuffer *cur_buf; /* The buffer we are currently + building. */ + GstClockTime cur_ts; /* Timestamp associated to the + current buffer. */ + + guchar scan_state; /* The current state of the MPEG start + code scanner. */ + guint scan_pos; /* The current position of the MPEG + start code scanner (with respect to + the start of the current buffer. */ + + guchar parse_state; /* The current state of the MPEG + sequence parser. */ +}; + + +struct _Dxr3VideoSinkClass { + GstElementClass parent_class; + + /* signals */ + void (*flushed) (Dxr3VideoSink *sink); +}; + + +extern GType dxr3videosink_get_type (void); +extern gboolean dxr3videosink_factory_init (GstPlugin *plugin); + +G_END_DECLS + +#endif /* __DXR3VIDEOSINK_H__ */ diff --git a/sys/dxr3/gstdxr3.c b/sys/dxr3/gstdxr3.c deleted file mode 100644 index 4d2cc00f..00000000 --- a/sys/dxr3/gstdxr3.c +++ /dev/null @@ -1,38 +0,0 @@ -#include "gstdxr3videosink.h" - -/* elementfactory information */ -static GstElementDetails dxr3_video_sink_details = { - "dxr3/Hollywood+ mpeg decoder board plugin", - "video/mpeg", - "GPL", - "Outputs PAL/NTSC video via the dxr3/Hollywood+ mpeg decoder board", - VERSION, - "Rehan Khwaja <rehankhwaja@yahoo.com>", - "(C) 2002", -}; - - -static gboolean -plugin_init (GModule *module, GstPlugin *plugin) -{ - GstElementFactory *video_factory; - - video_factory = gst_element_factory_new("dxr3videosink", GST_TYPE_DXR3_VIDEO_SINK, &dxr3_video_sink_details); - g_return_val_if_fail(video_factory != NULL, FALSE); - - gst_element_factory_add_pad_template (video_factory, GST_PAD_TEMPLATE_GET (dxr3_video_sink_factory)); - - gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (video_factory)); - - return TRUE; -} - - -GstPluginDesc plugin_desc = { - GST_VERSION_MAJOR, - GST_VERSION_MINOR, - "dxr3", - plugin_init -}; - - diff --git a/sys/dxr3/gstdxr3videosink.c b/sys/dxr3/gstdxr3videosink.c deleted file mode 100644 index 4d9a944b..00000000 --- a/sys/dxr3/gstdxr3videosink.c +++ /dev/null @@ -1,383 +0,0 @@ -/* GStreamer DXR3 Hardware MPEG video decoder plugin - * Copyright (C) <2002> Rehan Khwaja <rehankhwaja@yahoo.com> - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public - * License along with this library; if not, write to the - * Free Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 02111-1307, USA. - */ - - -#include <string.h> -#include <fcntl.h> -#include "gstdxr3videosink.h" -#include <sys/ioctl.h> -#include <linux/em8300.h> - - -enum { - ARG_0, - ARG_TV_MODE, - ARG_DEVICE, - ARG_ASPECT_RATIO - /* TODO - - * DIGITAL/ANALOG AUDIO OUT - * OVERLAY MODE - * SET BCS?? what's that? - * OVERLAY ATTRIBUTES - where on the screen to put image - * OVERLAY WINDOW - as above - * OVERLAY KEYCOLOR - * OVERLAY SIGNAL MODE - * PLAYMODE - pausing, playing, slow forward etc - */ -}; - -static void gst_dxr3_video_sink_class_init (GstDxr3VideoSinkClass *klass); -static void gst_dxr3_video_sink_init (GstDxr3VideoSink *example); - -static void gst_dxr3_video_sink_chain (GstPad *pad, GstBuffer *buf); - -static void gst_dxr3_video_sink_set_property (GObject *object, guint prop_id, - const GValue *value, GParamSpec *pspec); -static void gst_dxr3_video_sink_get_property (GObject *object, guint prop_id, - GValue *value, GParamSpec *pspec); -static gboolean gst_dxr3_video_sink_handle_event (GstPad *pad, GstEvent *event); -static void gst_dxr3_video_sink_set_clock (GstElement *element, GstClock *clock); - - -static GstElementClass *parent_class = NULL; - - -#define GST_TYPE_DXR3_VIDEO_SINK_ASPECT_RATIOS (gst_dxr3_video_sink_aspect_ratios_get_type()) -static GType -gst_dxr3_video_sink_aspect_ratios_get_type(void) { - static GType dxr3_video_sink_aspect_ratio_type = 0; - static GEnumValue dxr3_video_sink_aspect_ratios[] = { - {0, "0", "4:3"}, - {1, "1", "16:9"}, - {0, NULL, NULL}, - }; - if (!dxr3_video_sink_aspect_ratio_type) { - dxr3_video_sink_aspect_ratio_type = g_enum_register_static("GstDxr3VideoSinkAspectRatios", dxr3_video_sink_aspect_ratios); - } - return dxr3_video_sink_aspect_ratio_type; -} - -#define GST_TYPE_DXR3_VIDEO_SINK_TV_MODES (gst_dxr3_video_sink_tv_modes_get_type()) -static GType -gst_dxr3_video_sink_tv_modes_get_type(void) { - static GType dxr3_video_sink_tv_mode_type = 0; - static GEnumValue dxr3_video_sink_tv_modes[] = { - {0, "0", "NTSC"}, - {1, "1", "PAL"}, - {0, NULL, NULL}, - }; - if (!dxr3_video_sink_tv_mode_type) { - dxr3_video_sink_tv_mode_type = g_enum_register_static("GstDxr3VideoSinkTvModes", dxr3_video_sink_tv_modes); - } - return dxr3_video_sink_tv_mode_type; -} - -static void -gst_dxr3_video_sink_set_clock(GstElement *element, GstClock *clock) -{ - GstDxr3VideoSink *dxr3_video_sink; - - dxr3_video_sink = GST_DXR3_VIDEO_SINK(element); - dxr3_video_sink->clock = clock; -} - -GType -gst_dxr3_video_sink_get_type(void) -{ - static GType dxr3_video_sink_type = 0; - - if (!dxr3_video_sink_type) { - static const GTypeInfo dxr3_video_sink_info = { - sizeof(GstDxr3VideoSinkClass), NULL, - NULL, - (GClassInitFunc)gst_dxr3_video_sink_class_init, - NULL, - NULL, - sizeof(GstDxr3VideoSink), - 0, - (GInstanceInitFunc)gst_dxr3_video_sink_init, - }; - dxr3_video_sink_type = g_type_register_static(GST_TYPE_ELEMENT, "GstDxr3VideoSink", &dxr3_video_sink_info, 0); - } - return dxr3_video_sink_type; -} - -static gchar * -gst_dxr3_video_sink_get_control_device(GstDxr3VideoSink *dxr3_video_sink) -{ - return g_strdup_printf("/dev/em8300-%d", dxr3_video_sink->device_number); -} - -static gchar * -gst_dxr3_video_sink_get_video_device(GstDxr3VideoSink *dxr3_video_sink) -{ - return g_strdup_printf("/dev/em8300_mv-%d", dxr3_video_sink->device_number); -} - -static void -gst_dxr3_video_sink_class_init (GstDxr3VideoSinkClass *klass) -{ - GObjectClass *gobject_class; - GstElementClass *gstelement_class; - - gobject_class = (GObjectClass*)klass; - gstelement_class = (GstElementClass*)klass; - - parent_class = g_type_class_ref(GST_TYPE_ELEMENT); - - g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_TV_MODE, - g_param_spec_enum("tv-mode","tv-mode","sets NTSC/PAL output format", - GST_TYPE_DXR3_VIDEO_SINK_TV_MODES, 0, G_PARAM_READWRITE)); - - g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_DEVICE, - g_param_spec_int("device","device","sets/returns board number", - 0,3,0,G_PARAM_READWRITE)); - - g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_ASPECT_RATIO, - g_param_spec_enum("aspect-ratio", "aspect-ratio", "sets/returns aspect ratio", - GST_TYPE_DXR3_VIDEO_SINK_ASPECT_RATIOS, 0, G_PARAM_READWRITE)); - - gobject_class->set_property = gst_dxr3_video_sink_set_property; - gobject_class->get_property = gst_dxr3_video_sink_get_property; - - gstelement_class->set_clock = gst_dxr3_video_sink_set_clock; -} - -static void -gst_dxr3_video_sink_open_device(GstDxr3VideoSink *dxr3_video_sink) -{ - gchar *video_device_path; - - video_device_path = gst_dxr3_video_sink_get_video_device(dxr3_video_sink); - if (dxr3_video_sink->device){ - fclose(dxr3_video_sink->device); - } - /* this is what disksink uses */ - dxr3_video_sink->device = fopen(video_device_path, "w"); - - g_free(video_device_path); -} - -static void -gst_dxr3_video_sink_init(GstDxr3VideoSink *dxr3_video_sink) -{ - dxr3_video_sink->sinkpad = gst_pad_new_from_template ( - GST_PAD_TEMPLATE_GET (dxr3_video_sink_factory), "video_sink"); - gst_pad_set_chain_function(dxr3_video_sink->sinkpad, gst_dxr3_video_sink_chain); - gst_element_add_pad(GST_ELEMENT(dxr3_video_sink),dxr3_video_sink->sinkpad); - - dxr3_video_sink->device_number = 0; - dxr3_video_sink->device = 0; - /* FIXME - should only have device open when necessary - * which probably requires handling events? - * also, when is this device closed? - */ - gst_dxr3_video_sink_open_device(dxr3_video_sink); - - GST_FLAG_SET (GST_ELEMENT(dxr3_video_sink), GST_ELEMENT_EVENT_AWARE); - gst_pad_set_event_function(dxr3_video_sink->sinkpad, gst_dxr3_video_sink_handle_event); - - dxr3_video_sink->clock = NULL; -} - -static gboolean -gst_dxr3_video_sink_handle_event(GstPad *pad, GstEvent *event) -{ - GstEventType type; - - type = event ? GST_EVENT_TYPE (event) : GST_EVENT_UNKNOWN; - - switch (type) { - case GST_EVENT_SEEK: - g_print("seek event\n\n"); - break; - case GST_EVENT_NEW_MEDIA: - g_print("new media event\n\n"); - break; - case GST_EVENT_FLUSH: - g_print("flush event\n\n"); - break; - default: - g_print("event\n\n"); - gst_pad_event_default (pad, event); - break; - } - - return TRUE; -} - -static void -gst_dxr3_video_sink_chain (GstPad *pad, GstBuffer *buf) -{ - GstDxr3VideoSink *dxr3_video_sink; - long pts; - - /* Some of these checks are of dubious value, since if there were not - * already true, the chain function would never be called. - */ - g_return_if_fail(pad != NULL); - g_return_if_fail(GST_IS_PAD(pad)); - g_return_if_fail(buf != NULL); - - dxr3_video_sink = GST_DXR3_VIDEO_SINK(gst_pad_get_parent (pad)); - - g_return_if_fail(dxr3_video_sink != NULL); - g_return_if_fail(GST_IS_DXR3_VIDEO_SINK(dxr3_video_sink)); - - /* Copy the data in the incoming buffer onto the device. */ - fwrite(GST_BUFFER_DATA (buf), 1, GST_BUFFER_SIZE (buf), dxr3_video_sink->device); - pts = (long)GST_BUFFER_TIMESTAMP(buf); - if (-1 == ioctl((int)dxr3_video_sink->device, EM8300_IOCTL_VIDEO_SETPTS, &pts)){ - GST_DEBUG(0, "FAILED call to EM8300_IOCTL_VIDEO_SETPTS\n"); - } - - gst_buffer_unref (buf); -} - -static void -gst_dxr3_video_sink_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec) -{ - GstDxr3VideoSink *dxr3_video_sink; - int device; - gchar *device_path; - int tv_mode_ioctl, aspect_ratio_ioctl; - - g_return_if_fail(GST_IS_DXR3_VIDEO_SINK(object)); - - dxr3_video_sink = GST_DXR3_VIDEO_SINK(object); - - switch (prop_id) { - case ARG_TV_MODE: - device_path = gst_dxr3_video_sink_get_control_device(dxr3_video_sink); - device = open(device_path, O_WRONLY); - if (device == -1){ - GST_DEBUG(0, "failed to open control device\n"); - break; - } - switch(g_value_get_int(value)){ - case 0: - tv_mode_ioctl = EM8300_VIDEOMODE_NTSC; - break; - case 1: - tv_mode_ioctl = EM8300_VIDEOMODE_PAL; - break; - case 2: - tv_mode_ioctl = EM8300_VIDEOMODE_PAL60; - break; - } - if (-1 == ioctl(device, EM8300_IOCTL_SET_VIDEOMODE, &tv_mode_ioctl)){ - GST_DEBUG (0,"failed to set tv-mode\n"); - } - close(device); - break; - case ARG_DEVICE: - dxr3_video_sink->device_number = g_value_get_int(value); - gst_dxr3_video_sink_open_device(dxr3_video_sink); - break; - case ARG_ASPECT_RATIO: - device_path = gst_dxr3_video_sink_get_control_device(dxr3_video_sink); - device = open(device_path, O_WRONLY); - if (device == -1){ - GST_DEBUG(0, "failed to open control device\n"); - break; - } - switch(g_value_get_enum(value)){ - case 0: - aspect_ratio_ioctl = EM8300_ASPECTRATIO_4_3; - break; - case 1: - aspect_ratio_ioctl = EM8300_ASPECTRATIO_16_9; - break; - } - if (-1 == ioctl(device, EM8300_IOCTL_SET_ASPECTRATIO, &aspect_ratio_ioctl)){ - GST_DEBUG(0, "failed to set aspect-ratio\n"); - } - break; - default: - break; - } -} - -static void -gst_dxr3_video_sink_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec) -{ - GstDxr3VideoSink *dxr3_video_sink; - gint device; - gchar *device_path; - int tv_mode_ioctl, aspect_ratio_ioctl; - - g_return_if_fail(GST_IS_DXR3_VIDEO_SINK(object)); - dxr3_video_sink = GST_DXR3_VIDEO_SINK(object); - - switch (prop_id) { - case ARG_TV_MODE: - device_path = gst_dxr3_video_sink_get_control_device(dxr3_video_sink); - tv_mode_ioctl = 0; - device = open(device_path, O_WRONLY); - if (-1 == device){ - GST_DEBUG(0, "failed to open control device\n"); - break; - } - if (-1 == ioctl(device, EM8300_IOCTL_GET_VIDEOMODE, &tv_mode_ioctl)){ - GST_DEBUG(0, "failed to get tv-mode\n"); - } - close(device); - - switch(tv_mode_ioctl){ - case EM8300_VIDEOMODE_NTSC: - g_value_set_enum(value, 0); - break; - case EM8300_VIDEOMODE_PAL: - g_value_set_enum(value, 1); - break; - case EM8300_VIDEOMODE_PAL60: - g_value_set_enum(value, 2); - break; - } - break; - case ARG_DEVICE: - g_value_set_int(value, dxr3_video_sink->device_number); - break; - case ARG_ASPECT_RATIO: - device_path = gst_dxr3_video_sink_get_control_device(dxr3_video_sink); - aspect_ratio_ioctl = 0; - device = open(device_path, O_WRONLY); - if (-1 == device){ - GST_DEBUG(0, "failed to open control device\n"); - break; - } - if (-1 == ioctl(device, EM8300_IOCTL_GET_ASPECTRATIO, &aspect_ratio_ioctl)){ - GST_DEBUG(0, "failed to get aspect ratio\n"); - } - close(device); - - switch(aspect_ratio_ioctl){ - case EM8300_ASPECTRATIO_4_3: - g_value_set_enum(value, 0); - break; - case EM8300_ASPECTRATIO_16_9: - g_value_set_enum(value, 1); - break; - } - break; - default: - G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); - break; - } -} diff --git a/sys/dxr3/gstdxr3videosink.h b/sys/dxr3/gstdxr3videosink.h deleted file mode 100644 index 3933329e..00000000 --- a/sys/dxr3/gstdxr3videosink.h +++ /dev/null @@ -1,85 +0,0 @@ -/* GStreamer DXR3 Hardware MPEG video decoder plugin - * Copyright (C) <2002> Rehan Khwaja <rehankhwaja@yahoo.com> - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public - * License along with this library; if not, write to the - * Free Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 02111-1307, USA. - */ - - -#ifndef __GST_DXR3_VIDEO_SINK_H__ -#define __GST_DXR3_VIDEO_SINK_H__ - -#include <gst/gst.h> - -#ifdef __cplusplus -extern "C" { -#endif /* __cplusplus */ - - -typedef struct _GstDxr3VideoSink GstDxr3VideoSink; -struct _GstDxr3VideoSink; - -struct _GstDxr3VideoSink { - GstElement element; - - /* board number */ - gint device_number; - - /* file handle for the video device */ - FILE *device; - - GstClock *clock; - - /* our only pad */ - GstPad *sinkpad; -}; - - -typedef struct _GstDxr3VideoSinkClass GstDxr3VideoSinkClass; - -struct _GstDxr3VideoSinkClass { - GstElementClass parent_class; -}; - - -#define GST_TYPE_DXR3_VIDEO_SINK \ - (gst_dxr3_video_sink_get_type()) -#define GST_DXR3_VIDEO_SINK(obj) \ - (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_DXR3_VIDEO_SINK,GstDxr3VideoSink)) -#define GST_DXR3_VIDEO_SINK_CLASS(klass) \ - (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_DXR3_VIDEO_SINK,GstDxr3VideoSink)) -#define GST_IS_DXR3_VIDEO_SINK(obj) \ - (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_DXR3_VIDEO_SINK)) -#define GST_IS_DXR3_VIDEO_SINK_CLASS(obj) \ - (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_DXR3_VIDEO_SINK)) - - -GType gst_dxr3_video_sink_get_type(void); - - -GST_PAD_TEMPLATE_FACTORY (dxr3_video_sink_factory, - "sink", - GST_PAD_SINK, - GST_PAD_ALWAYS, - gst_caps_new ("video_sink", "video/mpeg", NULL) -); - - -#ifdef __cplusplus -} -#endif /* __cplusplus */ - - -#endif /* __GST_DXR3_VIDEO_SINK_H__ */ |