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Diffstat (limited to 'ext/wavpack/gstwavpackenc.c')
| -rw-r--r-- | ext/wavpack/gstwavpackenc.c | 908 |
1 files changed, 0 insertions, 908 deletions
diff --git a/ext/wavpack/gstwavpackenc.c b/ext/wavpack/gstwavpackenc.c deleted file mode 100644 index ad5e8ada..00000000 --- a/ext/wavpack/gstwavpackenc.c +++ /dev/null @@ -1,908 +0,0 @@ -/* GStreamer Wavpack encoder plugin - * Copyright (c) 2006 Sebastian Dröge <slomo@circular-chaos.org> - * - * gstwavpackdec.c: Wavpack audio encoder - * - * 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. - */ - -/** - * SECTION:element-wavpackenc - * - * <refsect2> - * WavpackEnc encodes raw audio into a framed Wavpack stream. - * <ulink url="http://www.wavpack.com/">Wavpack</ulink> is an open-source - * audio codec that features both lossless and lossy encoding. - * <title>Example launch line</title> - * <para> - * <programlisting> - * gst-launch audiotestsrc num-buffers=500 ! audioconvert ! wavpackenc ! filesink location=sinewave.wv - * </programlisting> - * This pipeline encodes audio from audiotestsrc into a Wavpack file. The audioconvert element is needed - * as the Wavpack encoder only accepts input with 32 bit width (and every depth between 1 and 32 bits). - * </para> - * <para> - * <programlisting> - * gst-launch cdda://1 ! audioconvert ! wavpackenc ! filesink location=track1.wv - * </programlisting> - * This pipeline encodes audio from an audio CD into a Wavpack file using - * lossless encoding (the file output will be fairly large). - * </para> - * <para> - * <programlisting> - * gst-launch cdda://1 ! audioconvert ! wavpackenc bitrate=128000 ! filesink location=track1.wv - * </programlisting> - * This pipeline encodes audio from an audio CD into a Wavpack file using - * lossy encoding at a certain bitrate (the file will be fairly small). - * </para> - * </refsect2> - */ - -/* - * TODO: - add multichannel handling. channel_mask is: - * front left - * front right - * center - * LFE - * back left - * back right - * front left center - * front right center - * back left - * back center - * side left - * side right - * ... - * - add 32 bit float mode. CONFIG_FLOAT_DATA - */ - -#include <string.h> -#include <gst/gst.h> -#include <glib/gprintf.h> - -#include <wavpack/wavpack.h> -#include "gstwavpackenc.h" -#include "gstwavpackcommon.h" -#include "md5.h" - -static GstFlowReturn gst_wavpack_enc_chain (GstPad * pad, GstBuffer * buffer); -static gboolean gst_wavpack_enc_sink_set_caps (GstPad * pad, GstCaps * caps); -static int gst_wavpack_enc_push_block (void *id, void *data, int32_t count); -static gboolean gst_wavpack_enc_sink_event (GstPad * pad, GstEvent * event); -static GstStateChangeReturn gst_wavpack_enc_change_state (GstElement * element, - GstStateChange transition); -static void gst_wavpack_enc_set_property (GObject * object, guint prop_id, - const GValue * value, GParamSpec * pspec); -static void gst_wavpack_enc_get_property (GObject * object, guint prop_id, - GValue * value, GParamSpec * pspec); - -enum -{ - ARG_0, - ARG_MODE, - ARG_BITRATE, - ARG_BITSPERSAMPLE, - ARG_CORRECTION_MODE, - ARG_MD5, - ARG_EXTRA_PROCESSING, - ARG_JOINT_STEREO_MODE -}; - -GST_DEBUG_CATEGORY_STATIC (gst_wavpack_enc_debug); -#define GST_CAT_DEFAULT gst_wavpack_enc_debug - -static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink", - GST_PAD_SINK, - GST_PAD_ALWAYS, - GST_STATIC_CAPS ("audio/x-raw-int, " - "width = (int) 32, " - "depth = (int) [ 1, 32], " - "endianness = (int) BYTE_ORDER, " - "channels = (int) [ 1, 2 ], " - "rate = (int) [ 6000, 192000 ]," "signed = (boolean) TRUE") - ); - -static GstStaticPadTemplate src_factory = GST_STATIC_PAD_TEMPLATE ("src", - GST_PAD_SRC, - GST_PAD_ALWAYS, - GST_STATIC_CAPS ("audio/x-wavpack, " - "width = (int) [ 1, 32 ], " - "channels = (int) [ 1, 2 ], " - "rate = (int) [ 6000, 192000 ], " "framed = (boolean) TRUE") - ); - -static GstStaticPadTemplate wvcsrc_factory = GST_STATIC_PAD_TEMPLATE ("wvcsrc", - GST_PAD_SRC, - GST_PAD_SOMETIMES, - GST_STATIC_CAPS ("audio/x-wavpack-correction, " "framed = (boolean) TRUE") - ); - -enum -{ - GST_WAVPACK_ENC_MODE_VERY_FAST = 0, - GST_WAVPACK_ENC_MODE_FAST, - GST_WAVPACK_ENC_MODE_DEFAULT, - GST_WAVPACK_ENC_MODE_HIGH, - GST_WAVPACK_ENC_MODE_VERY_HIGH -}; - -#define GST_TYPE_WAVPACK_ENC_MODE (gst_wavpack_enc_mode_get_type ()) -static GType -gst_wavpack_enc_mode_get_type (void) -{ - static GType qtype = 0; - - if (qtype == 0) { - static const GEnumValue values[] = { -#if 0 - /* Very Fast Compression is not supported yet, but will be supported - * in future wavpack versions */ - {GST_WAVPACK_ENC_MODE_VERY_FAST, "Very Fast Compression", "veryfast"}, -#endif - {GST_WAVPACK_ENC_MODE_FAST, "Fast Compression", "fast"}, - {GST_WAVPACK_ENC_MODE_DEFAULT, "Normal Compression", "normal"}, - {GST_WAVPACK_ENC_MODE_HIGH, "High Compression", "high"}, -#ifndef WAVPACK_OLD_API - {GST_WAVPACK_ENC_MODE_VERY_HIGH, "Very High Compression", "veryhigh"}, -#endif - {0, NULL, NULL} - }; - - qtype = g_enum_register_static ("GstWavpackEncMode", values); - } - return qtype; -} - -enum -{ - GST_WAVPACK_CORRECTION_MODE_OFF = 0, - GST_WAVPACK_CORRECTION_MODE_ON, - GST_WAVPACK_CORRECTION_MODE_OPTIMIZED -}; - -#define GST_TYPE_WAVPACK_ENC_CORRECTION_MODE (gst_wavpack_enc_correction_mode_get_type ()) -static GType -gst_wavpack_enc_correction_mode_get_type (void) -{ - static GType qtype = 0; - - if (qtype == 0) { - static const GEnumValue values[] = { - {GST_WAVPACK_CORRECTION_MODE_OFF, "Create no correction file", "off"}, - {GST_WAVPACK_CORRECTION_MODE_ON, "Create correction file", "on"}, - {GST_WAVPACK_CORRECTION_MODE_OPTIMIZED, - "Create optimized correction file", "optimized"}, - {0, NULL, NULL} - }; - - qtype = g_enum_register_static ("GstWavpackEncCorrectionMode", values); - } - return qtype; -} - -enum -{ - GST_WAVPACK_JS_MODE_AUTO = 0, - GST_WAVPACK_JS_MODE_LEFT_RIGHT, - GST_WAVPACK_JS_MODE_MID_SIDE -}; - -#define GST_TYPE_WAVPACK_ENC_JOINT_STEREO_MODE (gst_wavpack_enc_joint_stereo_mode_get_type ()) -static GType -gst_wavpack_enc_joint_stereo_mode_get_type (void) -{ - static GType qtype = 0; - - if (qtype == 0) { - static const GEnumValue values[] = { - {GST_WAVPACK_JS_MODE_AUTO, "auto", "auto"}, - {GST_WAVPACK_JS_MODE_LEFT_RIGHT, "left/right", "leftright"}, - {GST_WAVPACK_JS_MODE_MID_SIDE, "mid/side", "midside"}, - {0, NULL, NULL} - }; - - qtype = g_enum_register_static ("GstWavpackEncJSMode", values); - } - return qtype; -} - -GST_BOILERPLATE (GstWavpackEnc, gst_wavpack_enc, GstElement, GST_TYPE_ELEMENT); - -static void -gst_wavpack_enc_base_init (gpointer klass) -{ - static const GstElementDetails element_details = { - "Wavpack audio encoder", - "Codec/Encoder/Audio", - "Encodes audio with the Wavpack lossless/lossy audio codec", - "Sebastian Dröge <slomo@circular-chaos.org>" - }; - GstElementClass *element_class = GST_ELEMENT_CLASS (klass); - - /* add pad templates */ - gst_element_class_add_pad_template (element_class, - gst_static_pad_template_get (&sink_factory)); - gst_element_class_add_pad_template (element_class, - gst_static_pad_template_get (&src_factory)); - gst_element_class_add_pad_template (element_class, - gst_static_pad_template_get (&wvcsrc_factory)); - - /* set element details */ - gst_element_class_set_details (element_class, &element_details); -} - - -static void -gst_wavpack_enc_class_init (GstWavpackEncClass * klass) -{ - GObjectClass *gobject_class = (GObjectClass *) klass; - GstElementClass *gstelement_class = (GstElementClass *) klass; - - parent_class = g_type_class_peek_parent (klass); - - /* set state change handler */ - gstelement_class->change_state = - GST_DEBUG_FUNCPTR (gst_wavpack_enc_change_state); - - /* set property handlers */ - gobject_class->set_property = - GST_DEBUG_FUNCPTR (gst_wavpack_enc_set_property); - gobject_class->get_property = - GST_DEBUG_FUNCPTR (gst_wavpack_enc_get_property); - - /* install all properties */ - g_object_class_install_property (gobject_class, ARG_MODE, - g_param_spec_enum ("mode", "Encoding mode", - "Speed versus compression tradeoff.", - GST_TYPE_WAVPACK_ENC_MODE, GST_WAVPACK_ENC_MODE_DEFAULT, - G_PARAM_READWRITE)); - g_object_class_install_property (gobject_class, ARG_BITRATE, - g_param_spec_uint ("bitrate", "Bitrate", - "Try to encode with this average bitrate (bits/sec). " - "This enables lossy encoding, values smaller than 24000 disable it again.", - 0, 9600000, 0, G_PARAM_READWRITE)); - g_object_class_install_property (gobject_class, ARG_BITSPERSAMPLE, - g_param_spec_double ("bits-per-sample", "Bits per sample", - "Try to encode with this amount of bits per sample. " - "This enables lossy encoding, values smaller than 2.0 disable it again.", - 0.0, 24.0, 0.0, G_PARAM_READWRITE)); - g_object_class_install_property (gobject_class, ARG_CORRECTION_MODE, - g_param_spec_enum ("correction-mode", "Correction stream mode", - "Use this mode for the correction stream. Only works in lossy mode!", - GST_TYPE_WAVPACK_ENC_CORRECTION_MODE, GST_WAVPACK_CORRECTION_MODE_OFF, - G_PARAM_READWRITE)); - g_object_class_install_property (gobject_class, ARG_MD5, - g_param_spec_boolean ("md5", "MD5", - "Store MD5 hash of raw samples within the file.", FALSE, - G_PARAM_READWRITE)); - g_object_class_install_property (gobject_class, ARG_EXTRA_PROCESSING, - g_param_spec_uint ("extra-processing", "Extra processing", - "Use better but slower filters for better compression/quality.", - 0, 6, 0, G_PARAM_READWRITE)); - g_object_class_install_property (gobject_class, ARG_JOINT_STEREO_MODE, - g_param_spec_enum ("joint-stereo-mode", "Joint-Stereo mode", - "Use this joint-stereo mode.", GST_TYPE_WAVPACK_ENC_JOINT_STEREO_MODE, - GST_WAVPACK_JS_MODE_AUTO, G_PARAM_READWRITE)); -} - -static void -gst_wavpack_enc_reset (GstWavpackEnc * enc) -{ - /* close and free everything stream related if we already did something */ - if (enc->wp_context) { - WavpackCloseFile (enc->wp_context); - enc->wp_context = NULL; - } - if (enc->wp_config) { - g_free (enc->wp_config); - enc->wp_config = NULL; - } - if (enc->first_block) { - g_free (enc->first_block); - enc->first_block = NULL; - } - enc->first_block_size = 0; - if (enc->md5_context) { - g_free (enc->md5_context); - enc->md5_context = NULL; - } - - /* reset the last returns to GST_FLOW_OK. This is only set to something else - * while WavpackPackSamples() or more specific gst_wavpack_enc_push_block() - * so not valid anymore */ - enc->srcpad_last_return = enc->wvcsrcpad_last_return = GST_FLOW_OK; - - /* reset stream information */ - enc->samplerate = 0; - enc->depth = 0; - enc->channels = 0; -} - -static void -gst_wavpack_enc_init (GstWavpackEnc * enc, GstWavpackEncClass * gclass) -{ - enc->sinkpad = gst_pad_new_from_static_template (&sink_factory, "sink"); - gst_pad_set_setcaps_function (enc->sinkpad, - GST_DEBUG_FUNCPTR (gst_wavpack_enc_sink_set_caps)); - gst_pad_set_chain_function (enc->sinkpad, - GST_DEBUG_FUNCPTR (gst_wavpack_enc_chain)); - gst_pad_set_event_function (enc->sinkpad, - GST_DEBUG_FUNCPTR (gst_wavpack_enc_sink_event)); - gst_element_add_pad (GST_ELEMENT (enc), enc->sinkpad); - - /* setup src pad */ - enc->srcpad = gst_pad_new_from_static_template (&src_factory, "src"); - gst_element_add_pad (GST_ELEMENT (enc), enc->srcpad); - - /* initialize object attributes */ - enc->wp_config = NULL; - enc->wp_context = NULL; - enc->first_block = NULL; - enc->md5_context = NULL; - gst_wavpack_enc_reset (enc); - - enc->wv_id.correction = FALSE; - enc->wv_id.wavpack_enc = enc; - enc->wvc_id.correction = TRUE; - enc->wvc_id.wavpack_enc = enc; - - /* set default values of params */ - enc->mode = GST_WAVPACK_ENC_MODE_DEFAULT; - enc->bitrate = 0; - enc->bps = 0.0; - enc->correction_mode = GST_WAVPACK_CORRECTION_MODE_OFF; - enc->md5 = FALSE; - enc->extra_processing = 0; - enc->joint_stereo_mode = GST_WAVPACK_JS_MODE_AUTO; -} - -static gboolean -gst_wavpack_enc_sink_set_caps (GstPad * pad, GstCaps * caps) -{ - GstWavpackEnc *enc = GST_WAVPACK_ENC (gst_pad_get_parent (pad)); - GstStructure *structure = gst_caps_get_structure (caps, 0); - - /* FIXME: Workaround for bug #421543: calls gst_pad_accept_caps() */ - /* check caps and put relevant parts into our object attributes */ - if (!gst_pad_accept_caps (pad, caps) || - !gst_structure_get_int (structure, "channels", &enc->channels) || - !gst_structure_get_int (structure, "rate", &enc->samplerate) || - !gst_structure_get_int (structure, "depth", &enc->depth)) { - GST_ELEMENT_ERROR (enc, LIBRARY, INIT, (NULL), - ("got invalid caps: %" GST_PTR_FORMAT, caps)); - gst_object_unref (enc); - return FALSE; - } - - /* set fixed src pad caps now that we know what we will get */ - caps = gst_caps_new_simple ("audio/x-wavpack", - "channels", G_TYPE_INT, enc->channels, - "rate", G_TYPE_INT, enc->samplerate, - "width", G_TYPE_INT, enc->depth, "framed", G_TYPE_BOOLEAN, TRUE, NULL); - - if (!gst_pad_set_caps (enc->srcpad, caps)) { - GST_ELEMENT_ERROR (enc, LIBRARY, INIT, (NULL), - ("setting caps failed: %" GST_PTR_FORMAT, caps)); - gst_caps_unref (caps); - gst_object_unref (enc); - return FALSE; - } - gst_pad_use_fixed_caps (enc->srcpad); - - gst_caps_unref (caps); - gst_object_unref (enc); - return TRUE; -} - -static void -gst_wavpack_enc_set_wp_config (GstWavpackEnc * enc) -{ - enc->wp_config = g_new0 (WavpackConfig, 1); - /* set general stream informations in the WavpackConfig */ - enc->wp_config->bytes_per_sample = GST_ROUND_UP_8 (enc->depth) / 8; - enc->wp_config->bits_per_sample = enc->depth; - enc->wp_config->num_channels = enc->channels; - - /* TODO: handle more than 2 channels correctly! */ - if (enc->channels == 1) { - enc->wp_config->channel_mask = 0x4; - } else if (enc->channels == 2) { - enc->wp_config->channel_mask = 0x2 | 0x1; - } - enc->wp_config->sample_rate = enc->samplerate; - - /* - * Set parameters in WavpackConfig - */ - - /* Encoding mode */ - switch (enc->mode) { -#if 0 - case GST_WAVPACK_ENC_MODE_VERY_FAST: - enc->wp_config->flags |= CONFIG_VERY_FAST_FLAG; - enc->wp_config->flags |= CONFIG_FAST_FLAG; - break; -#endif - case GST_WAVPACK_ENC_MODE_FAST: - enc->wp_config->flags |= CONFIG_FAST_FLAG; - break; - case GST_WAVPACK_ENC_MODE_DEFAULT: - break; - case GST_WAVPACK_ENC_MODE_HIGH: - enc->wp_config->flags |= CONFIG_HIGH_FLAG; - break; -#ifndef WAVPACK_OLD_API - case GST_WAVPACK_ENC_MODE_VERY_HIGH: - enc->wp_config->flags |= CONFIG_HIGH_FLAG; - enc->wp_config->flags |= CONFIG_VERY_HIGH_FLAG; - break; -#endif - } - - /* Bitrate, enables lossy mode */ - if (enc->bitrate) { - enc->wp_config->flags |= CONFIG_HYBRID_FLAG; - enc->wp_config->flags |= CONFIG_BITRATE_KBPS; - enc->wp_config->bitrate = enc->bitrate / 1000.0; - } else if (enc->bps) { - enc->wp_config->flags |= CONFIG_HYBRID_FLAG; - enc->wp_config->bitrate = enc->bps; - } - - /* Correction Mode, only in lossy mode */ - if (enc->wp_config->flags & CONFIG_HYBRID_FLAG) { - if (enc->correction_mode > GST_WAVPACK_CORRECTION_MODE_OFF) { - enc->wvcsrcpad = - gst_pad_new_from_static_template (&wvcsrc_factory, "wvcsrc"); - - /* try to add correction src pad, don't set correction mode on failure */ - GstCaps *caps = gst_caps_new_simple ("audio/x-wavpack-correction", - "framed", G_TYPE_BOOLEAN, TRUE, NULL); - - GST_DEBUG_OBJECT (enc, "Adding correction pad with caps %" - GST_PTR_FORMAT, caps); - if (!gst_pad_set_caps (enc->wvcsrcpad, caps)) { - enc->correction_mode = 0; - GST_WARNING_OBJECT (enc, "setting correction caps failed"); - } else { - gst_pad_use_fixed_caps (enc->wvcsrcpad); - gst_pad_set_active (enc->wvcsrcpad, TRUE); - gst_element_add_pad (GST_ELEMENT (enc), enc->wvcsrcpad); - enc->wp_config->flags |= CONFIG_CREATE_WVC; - if (enc->correction_mode == GST_WAVPACK_CORRECTION_MODE_OPTIMIZED) { - enc->wp_config->flags |= CONFIG_OPTIMIZE_WVC; - } - } - gst_caps_unref (caps); - } - } else { - if (enc->correction_mode > GST_WAVPACK_CORRECTION_MODE_OFF) { - enc->correction_mode = 0; - GST_WARNING_OBJECT (enc, "setting correction mode only has " - "any effect if a bitrate is provided."); - } - } - gst_element_no_more_pads (GST_ELEMENT (enc)); - - /* MD5, setup MD5 context */ - if ((enc->md5) && !(enc->md5_context)) { - enc->wp_config->flags |= CONFIG_MD5_CHECKSUM; - enc->md5_context = g_new0 (MD5_CTX, 1); - MD5Init (enc->md5_context); - } - - /* Extra encode processing */ - if (enc->extra_processing) { - enc->wp_config->flags |= CONFIG_EXTRA_MODE; - enc->wp_config->xmode = enc->extra_processing; - } - - /* Joint stereo mode */ - switch (enc->joint_stereo_mode) { - case GST_WAVPACK_JS_MODE_AUTO: - break; - case GST_WAVPACK_JS_MODE_LEFT_RIGHT: - enc->wp_config->flags |= CONFIG_JOINT_OVERRIDE; - enc->wp_config->flags &= ~CONFIG_JOINT_STEREO; - break; - case GST_WAVPACK_JS_MODE_MID_SIDE: - enc->wp_config->flags |= (CONFIG_JOINT_OVERRIDE | CONFIG_JOINT_STEREO); - break; - } -} - -static int -gst_wavpack_enc_push_block (void *id, void *data, int32_t count) -{ - GstWavpackEncWriteID *wid = (GstWavpackEncWriteID *) id; - GstWavpackEnc *enc = GST_WAVPACK_ENC (wid->wavpack_enc); - GstFlowReturn *flow; - GstBuffer *buffer; - GstPad *pad; - guchar *block = (guchar *) data; - - pad = (wid->correction) ? enc->wvcsrcpad : enc->srcpad; - flow = - (wid->correction) ? &enc->wvcsrcpad_last_return : &enc-> - srcpad_last_return; - - *flow = gst_pad_alloc_buffer_and_set_caps (pad, GST_BUFFER_OFFSET_NONE, - count, GST_PAD_CAPS (pad), &buffer); - - if (*flow != GST_FLOW_OK) { - GST_WARNING_OBJECT (enc, "flow on %s:%s = %s", - GST_DEBUG_PAD_NAME (pad), gst_flow_get_name (*flow)); - return FALSE; - } - - g_memmove (GST_BUFFER_DATA (buffer), block, count); - - if (count > sizeof (WavpackHeader) && memcmp (block, "wvpk", 4) == 0) { - /* if it's a Wavpack block set buffer timestamp and duration, etc */ - WavpackHeader wph; - - GST_LOG_OBJECT (enc, "got %d bytes of encoded wavpack %sdata", - count, (wid->correction) ? "correction " : ""); - - gst_wavpack_read_header (&wph, block); - - /* if it's the first wavpack block, send a NEW_SEGMENT event */ - if (wph.block_index == 0) { - gst_pad_push_event (pad, - gst_event_new_new_segment (FALSE, - 1.0, GST_FORMAT_TIME, 0, GST_BUFFER_OFFSET_NONE, 0)); - - /* save header for later reference, so we can re-send it later on - * EOS with fixed up values for total sample count etc. */ - if (enc->first_block == NULL && !wid->correction) { - enc->first_block = g_memdup (block, count); - enc->first_block_size = count; - } - } - - /* set buffer timestamp, duration, offset, offset_end from - * the wavpack header */ - GST_BUFFER_TIMESTAMP (buffer) = - gst_util_uint64_scale_int (GST_SECOND, wph.block_index, - enc->samplerate); - GST_BUFFER_DURATION (buffer) = - gst_util_uint64_scale_int (GST_SECOND, wph.block_samples, - enc->samplerate); - GST_BUFFER_OFFSET (buffer) = wph.block_index; - GST_BUFFER_OFFSET_END (buffer) = wph.block_index + wph.block_samples; - } else { - /* if it's something else set no timestamp and duration on the buffer */ - GST_DEBUG_OBJECT (enc, "got %d bytes of unknown data", count); - - GST_BUFFER_TIMESTAMP (buffer) = GST_CLOCK_TIME_NONE; - GST_BUFFER_DURATION (buffer) = GST_CLOCK_TIME_NONE; - } - - /* push the buffer and forward errors */ - *flow = gst_pad_push (pad, buffer); - - if (*flow != GST_FLOW_OK) { - GST_WARNING_OBJECT (enc, "flow on %s:%s = %s", - GST_DEBUG_PAD_NAME (pad), gst_flow_get_name (*flow)); - return FALSE; - } - - return TRUE; -} - -static GstFlowReturn -gst_wavpack_enc_chain (GstPad * pad, GstBuffer * buf) -{ - GstWavpackEnc *enc = GST_WAVPACK_ENC (gst_pad_get_parent (pad)); - uint32_t sample_count = GST_BUFFER_SIZE (buf) / 4; - GstFlowReturn ret; - - /* reset the last returns to GST_FLOW_OK. This is only set to something else - * while WavpackPackSamples() or more specific gst_wavpack_enc_push_block() - * so not valid anymore */ - enc->srcpad_last_return = enc->wvcsrcpad_last_return = GST_FLOW_OK; - - GST_DEBUG ("got %u raw samples", sample_count); - - /* check if we already have a valid WavpackContext, otherwise make one */ - if (!enc->wp_context) { - /* create raw context */ - enc->wp_context = - WavpackOpenFileOutput (gst_wavpack_enc_push_block, &enc->wv_id, - (enc->correction_mode > 0) ? &enc->wvc_id : NULL); - if (!enc->wp_context) { - GST_ELEMENT_ERROR (enc, LIBRARY, INIT, (NULL), - ("error creating Wavpack context")); - gst_object_unref (enc); - gst_buffer_unref (buf); - return GST_FLOW_ERROR; - } - - /* set the WavpackConfig according to our parameters */ - gst_wavpack_enc_set_wp_config (enc); - - /* set the configuration to the context now that we know everything - * and initialize the encoder */ - if (!WavpackSetConfiguration (enc->wp_context, - enc->wp_config, (uint32_t) (-1)) - || !WavpackPackInit (enc->wp_context)) { - GST_ELEMENT_ERROR (enc, LIBRARY, SETTINGS, (NULL), - ("error setting up wavpack encoding context")); - WavpackCloseFile (enc->wp_context); - gst_object_unref (enc); - gst_buffer_unref (buf); - return GST_FLOW_ERROR; - } - GST_DEBUG ("setup of encoding context successfull"); - } - - /* if we want to append the MD5 sum to the stream update it here - * with the current raw samples */ - if (enc->md5) { - MD5Update (enc->md5_context, GST_BUFFER_DATA (buf), GST_BUFFER_SIZE (buf)); - } - - /* encode and handle return values from encoding */ - if (WavpackPackSamples (enc->wp_context, (int32_t *) GST_BUFFER_DATA (buf), - sample_count / enc->channels)) { - GST_DEBUG ("encoding samples successful"); - ret = GST_FLOW_OK; - } else { - if ((enc->srcpad_last_return == GST_FLOW_RESEND) || - (enc->wvcsrcpad_last_return == GST_FLOW_RESEND)) { - ret = GST_FLOW_RESEND; - } else if ((enc->srcpad_last_return == GST_FLOW_OK) || - (enc->wvcsrcpad_last_return == GST_FLOW_OK)) { - ret = GST_FLOW_OK; - } else if ((enc->srcpad_last_return == GST_FLOW_NOT_LINKED) && - (enc->wvcsrcpad_last_return == GST_FLOW_NOT_LINKED)) { - ret = GST_FLOW_NOT_LINKED; - } else if ((enc->srcpad_last_return == GST_FLOW_WRONG_STATE) && - (enc->wvcsrcpad_last_return == GST_FLOW_WRONG_STATE)) { - ret = GST_FLOW_WRONG_STATE; - } else { - GST_ELEMENT_ERROR (enc, LIBRARY, ENCODE, (NULL), - ("encoding samples failed")); - ret = GST_FLOW_ERROR; - } - } - - gst_buffer_unref (buf); - gst_object_unref (enc); - return ret; -} - -static void -gst_wavpack_enc_rewrite_first_block (GstWavpackEnc * enc) -{ - GstEvent *event = gst_event_new_new_segment (TRUE, 1.0, GST_FORMAT_BYTES, - 0, GST_BUFFER_OFFSET_NONE, 0); - gboolean ret; - - g_return_if_fail (enc); - g_return_if_fail (enc->first_block); - - /* update the sample count in the first block */ - WavpackUpdateNumSamples (enc->wp_context, enc->first_block); - - /* try to seek to the beginning of the output */ - ret = gst_pad_push_event (enc->srcpad, event); - if (ret) { - /* try to rewrite the first block */ - GST_DEBUG_OBJECT (enc, "rewriting first block ..."); - ret = gst_wavpack_enc_push_block (&enc->wv_id, - enc->first_block, enc->first_block_size); - } else { - GST_WARNING_OBJECT (enc, "rewriting of first block failed. " - "Seeking to first block failed!"); - } -} - -static gboolean -gst_wavpack_enc_sink_event (GstPad * pad, GstEvent * event) -{ - GstWavpackEnc *enc = GST_WAVPACK_ENC (gst_pad_get_parent (pad)); - gboolean ret = TRUE; - - GST_DEBUG ("Received %s event on sinkpad", GST_EVENT_TYPE_NAME (event)); - - switch (GST_EVENT_TYPE (event)) { - case GST_EVENT_EOS: - /* Encode all remaining samples and flush them to the src pads */ - WavpackFlushSamples (enc->wp_context); - - /* write the MD5 sum if we have to write one */ - if ((enc->md5) && (enc->md5_context)) { - guchar md5_digest[16]; - - MD5Final (md5_digest, enc->md5_context); - WavpackStoreMD5Sum (enc->wp_context, md5_digest); - } - - /* Try to rewrite the first frame with the correct sample number */ - if (enc->first_block) - gst_wavpack_enc_rewrite_first_block (enc); - - /* close the context if not already happened */ - if (enc->wp_context) { - WavpackCloseFile (enc->wp_context); - enc->wp_context = NULL; - } - - ret = gst_pad_event_default (pad, event); - break; - case GST_EVENT_NEWSEGMENT: - if (enc->wp_context) { - GST_WARNING_OBJECT (enc, "got NEWSEGMENT after encoding " - "already started"); - } - /* drop NEWSEGMENT events, we create our own when pushing - * the first buffer to the pads */ - gst_event_unref (event); - ret = TRUE; - break; - default: - ret = gst_pad_event_default (pad, event); - break; - } - - gst_object_unref (enc); - return ret; -} - -static GstStateChangeReturn -gst_wavpack_enc_change_state (GstElement * element, GstStateChange transition) -{ - GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS; - GstWavpackEnc *enc = GST_WAVPACK_ENC (element); - - switch (transition) { - case GST_STATE_CHANGE_NULL_TO_READY: - /* set the last returned GstFlowReturns of the two pads to GST_FLOW_OK - * as they're only set to something else in WavpackPackSamples() or more - * specific gst_wavpack_enc_push_block() and nothing happened there yet */ - enc->srcpad_last_return = enc->wvcsrcpad_last_return = GST_FLOW_OK; - break; - case GST_STATE_CHANGE_READY_TO_PAUSED: - break; - case GST_STATE_CHANGE_PAUSED_TO_PLAYING: - default: - break; - } - - ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition); - - switch (transition) { - case GST_STATE_CHANGE_PLAYING_TO_PAUSED: - break; - case GST_STATE_CHANGE_PAUSED_TO_READY: - gst_wavpack_enc_reset (enc); - break; - case GST_STATE_CHANGE_READY_TO_NULL: - break; - default: - break; - } - - return ret; -} - -static void -gst_wavpack_enc_set_property (GObject * object, guint prop_id, - const GValue * value, GParamSpec * pspec) -{ - GstWavpackEnc *enc = GST_WAVPACK_ENC (object); - - switch (prop_id) { - case ARG_MODE: - enc->mode = g_value_get_enum (value); - break; - case ARG_BITRATE:{ - guint val = g_value_get_uint (value); - - if ((val >= 24000) && (val <= 9600000)) { - enc->bitrate = val; - enc->bps = 0.0; - } else { - enc->bitrate = 0; - enc->bps = 0.0; - } - break; - } - case ARG_BITSPERSAMPLE:{ - gdouble val = g_value_get_double (value); - - if ((val >= 2.0) && (val <= 24.0)) { - enc->bps = val; - enc->bitrate = 0; - } else { - enc->bps = 0.0; - enc->bitrate = 0; - } - break; - } - case ARG_CORRECTION_MODE: - enc->correction_mode = g_value_get_enum (value); - break; - case ARG_MD5: - enc->md5 = g_value_get_boolean (value); - break; - case ARG_EXTRA_PROCESSING: - enc->extra_processing = g_value_get_uint (value); - break; - case ARG_JOINT_STEREO_MODE: - enc->joint_stereo_mode = g_value_get_enum (value); - break; - default: - G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); - break; - } -} - -static void -gst_wavpack_enc_get_property (GObject * object, guint prop_id, GValue * value, - GParamSpec * pspec) -{ - GstWavpackEnc *enc = GST_WAVPACK_ENC (object); - - switch (prop_id) { - case ARG_MODE: - g_value_set_enum (value, enc->mode); - break; - case ARG_BITRATE: - if (enc->bps == 0.0) { - g_value_set_uint (value, enc->bitrate); - } else { - g_value_set_uint (value, 0); - } - break; - case ARG_BITSPERSAMPLE: - if (enc->bitrate == 0) { - g_value_set_double (value, enc->bps); - } else { - g_value_set_double (value, 0.0); - } - break; - case ARG_CORRECTION_MODE: - g_value_set_enum (value, enc->correction_mode); - break; - case ARG_MD5: - g_value_set_boolean (value, enc->md5); - break; - case ARG_EXTRA_PROCESSING: - g_value_set_uint (value, enc->extra_processing); - break; - case ARG_JOINT_STEREO_MODE: - g_value_set_enum (value, enc->joint_stereo_mode); - break; - default: - G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); - break; - } -} - -gboolean -gst_wavpack_enc_plugin_init (GstPlugin * plugin) -{ - if (!gst_element_register (plugin, "wavpackenc", - GST_RANK_NONE, GST_TYPE_WAVPACK_ENC)) - return FALSE; - - GST_DEBUG_CATEGORY_INIT (gst_wavpack_enc_debug, "wavpack_enc", 0, - "Wavpack encoder"); - - return TRUE; -} |