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Diffstat (limited to 'gst/interleave/deinterleave.c')
| -rw-r--r-- | gst/interleave/deinterleave.c | 889 |
1 files changed, 0 insertions, 889 deletions
diff --git a/gst/interleave/deinterleave.c b/gst/interleave/deinterleave.c deleted file mode 100644 index 4c81d39d..00000000 --- a/gst/interleave/deinterleave.c +++ /dev/null @@ -1,889 +0,0 @@ -/* GStreamer - * Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu> - * 2000 Wim Taymans <wtay@chello.be> - * 2005 Wim Taymans <wim@fluendo.com> - * 2007 Andy Wingo <wingo at pobox.com> - * 2008 Sebastian Dröge <slomo@circular-chaos.org> - * - * deinterleave.c: deinterleave samples - * - * 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. - */ - -/* TODO: - * - handle changes in number of channels - * - handle changes in channel positions - * - better capsnego by using a buffer alloc function - * and passing downstream caps changes upstream there - */ - -/** - * SECTION:element-deinterleave - * @see_also: interleave - * - * Splits one interleaved multichannel audio stream into many mono audio streams. - * - * This element handles all raw audio formats and supports changing the input caps as long as - * all downstream elements can handle the new caps and the number of channels and the channel - * positions stay the same. This restriction will be removed in later versions by adding or - * removing some source pads as required. - * - * In most cases a queue and an audioconvert element should be added after each source pad - * before further processing of the audio data. - * - * <refsect2> - * <title>Example launch line</title> - * |[ - * gst-launch-0.10 filesrc location=/path/to/file.mp3 ! decodebin ! audioconvert ! "audio/x-raw-int,channels=2 ! deinterleave name=d d.src0 ! queue ! audioconvert ! vorbisenc ! oggmux ! filesink location=channel1.ogg d.src1 ! queue ! audioconvert ! vorbisenc ! oggmux ! filesink location=channel2.ogg - * ]| Decodes an MP3 file and encodes the left and right channel into separate - * Ogg Vorbis files. - * |[ - * gst-launch-0.10 filesrc location=file.mp3 ! decodebin ! audioconvert ! "audio/x-raw-int,channels=2" ! deinterleave name=d interleave name=i ! audioconvert ! wavenc ! filesink location=test.wav d.src0 ! queue ! audioconvert ! i.sink1 d.src1 ! queue ! audioconvert ! i.sink0 - * ]| Decodes and deinterleaves a Stereo MP3 file into separate channels and - * then interleaves the channels again to a WAV file with the channel with the - * channels exchanged. - * </refsect2> - */ - -#ifdef HAVE_CONFIG_H -# include "config.h" -#endif - -#include <gst/gst.h> -#include <string.h> -#include "deinterleave.h" - -GST_DEBUG_CATEGORY_STATIC (gst_deinterleave_debug); -#define GST_CAT_DEFAULT gst_deinterleave_debug - -static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src%d", - GST_PAD_SRC, - GST_PAD_SOMETIMES, - GST_STATIC_CAPS ("audio/x-raw-int, " - "rate = (int) [ 1, MAX ], " - "channels = (int) 1, " - "endianness = (int) { LITTLE_ENDIAN, BIG_ENDIAN }, " - "width = (int) { 8, 16, 24, 32 }, " - "depth = (int) [ 1, 32 ], " - "signed = (boolean) { true, false }; " - "audio/x-raw-float, " - "rate = (int) [ 1, MAX ], " - "channels = (int) 1, " - "endianness = (int) { LITTLE_ENDIAN , BIG_ENDIAN }, " - "width = (int) { 32, 64 }") - ); - -static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink", - GST_PAD_SINK, - GST_PAD_ALWAYS, - GST_STATIC_CAPS ("audio/x-raw-int, " - "rate = (int) [ 1, MAX ], " - "channels = (int) [ 1, MAX ], " - "endianness = (int) { LITTLE_ENDIAN, BIG_ENDIAN }, " - "width = (int) { 8, 16, 24, 32 }, " - "depth = (int) [ 1, 32 ], " - "signed = (boolean) { true, false }; " - "audio/x-raw-float, " - "rate = (int) [ 1, MAX ], " - "channels = (int) [ 1, MAX ], " - "endianness = (int) { LITTLE_ENDIAN , BIG_ENDIAN }, " - "width = (int) { 32, 64 }") - ); - -#define MAKE_FUNC(type) \ -static void deinterleave_##type (guint##type *out, guint##type *in, \ - guint stride, guint nframes) \ -{ \ - gint i; \ - \ - for (i = 0; i < nframes; i++) { \ - out[i] = *in; \ - in += stride; \ - } \ -} - -MAKE_FUNC (8); -MAKE_FUNC (16); -MAKE_FUNC (32); -MAKE_FUNC (64); - -static void -deinterleave_24 (guint8 * out, guint8 * in, guint stride, guint nframes) -{ - gint i; - - for (i = 0; i < nframes; i++) { - memcpy (out, in, 3); - out += 3; - in += stride * 3; - } -} - -GST_BOILERPLATE (GstDeinterleave, gst_deinterleave, GstElement, - GST_TYPE_ELEMENT); - -enum -{ - PROP_0, - PROP_KEEP_POSITIONS -}; - -static GstFlowReturn gst_deinterleave_chain (GstPad * pad, GstBuffer * buffer); - -static gboolean gst_deinterleave_sink_setcaps (GstPad * pad, GstCaps * caps); - -static GstCaps *gst_deinterleave_sink_getcaps (GstPad * pad); - -static gboolean gst_deinterleave_sink_activate_push (GstPad * pad, - gboolean active); -static gboolean gst_deinterleave_sink_event (GstPad * pad, GstEvent * event); - -static gboolean gst_deinterleave_src_query (GstPad * pad, GstQuery * query); - -static void gst_deinterleave_set_property (GObject * object, - guint prop_id, const GValue * value, GParamSpec * pspec); -static void gst_deinterleave_get_property (GObject * object, - guint prop_id, GValue * value, GParamSpec * pspec); - - -static void -gst_deinterleave_finalize (GObject * obj) -{ - GstDeinterleave *self = GST_DEINTERLEAVE (obj); - - if (self->pos) { - g_free (self->pos); - self->pos = NULL; - } - - if (self->pending_events) { - g_list_foreach (self->pending_events, (GFunc) gst_mini_object_unref, NULL); - g_list_free (self->pending_events); - self->pending_events = NULL; - } - - G_OBJECT_CLASS (parent_class)->finalize (obj); -} - -static void -gst_deinterleave_base_init (gpointer g_class) -{ - GstElementClass *gstelement_class = (GstElementClass *) g_class; - - gst_element_class_set_details_simple (gstelement_class, "Audio deinterleaver", - "Filter/Converter/Audio", - "Splits one interleaved multichannel audio stream into many mono audio streams", - "Andy Wingo <wingo at pobox.com>, " - "Iain <iain@prettypeople.org>, " - "Sebastian Dröge <slomo@circular-chaos.org>"); - - gst_element_class_add_pad_template (gstelement_class, - gst_static_pad_template_get (&sink_template)); - gst_element_class_add_pad_template (gstelement_class, - gst_static_pad_template_get (&src_template)); -} - -static void -gst_deinterleave_class_init (GstDeinterleaveClass * klass) -{ - GObjectClass *gobject_class = (GObjectClass *) klass; - - GST_DEBUG_CATEGORY_INIT (gst_deinterleave_debug, "deinterleave", 0, - "deinterleave element"); - - gobject_class->finalize = gst_deinterleave_finalize; - gobject_class->set_property = gst_deinterleave_set_property; - gobject_class->get_property = gst_deinterleave_get_property; - - /** - * GstDeinterleave:keep-positions - * - * Keep positions: When enable the caps on the output buffers will - * contain the original channel positions. This can be used to correctly - * interleave the output again later but can also lead to unwanted effects - * if the output should be handled as Mono. - * - */ - g_object_class_install_property (gobject_class, PROP_KEEP_POSITIONS, - g_param_spec_boolean ("keep-positions", "Keep positions", - "Keep the original channel positions on the output buffers", - FALSE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); -} - -static void -gst_deinterleave_init (GstDeinterleave * self, GstDeinterleaveClass * klass) -{ - self->channels = 0; - self->pos = NULL; - self->keep_positions = FALSE; - self->width = 0; - self->func = NULL; - - /* Add sink pad */ - self->sink = gst_pad_new_from_static_template (&sink_template, "sink"); - gst_pad_set_chain_function (self->sink, - GST_DEBUG_FUNCPTR (gst_deinterleave_chain)); - gst_pad_set_setcaps_function (self->sink, - GST_DEBUG_FUNCPTR (gst_deinterleave_sink_setcaps)); - gst_pad_set_getcaps_function (self->sink, - GST_DEBUG_FUNCPTR (gst_deinterleave_sink_getcaps)); - gst_pad_set_activatepush_function (self->sink, - GST_DEBUG_FUNCPTR (gst_deinterleave_sink_activate_push)); - gst_pad_set_event_function (self->sink, - GST_DEBUG_FUNCPTR (gst_deinterleave_sink_event)); - gst_element_add_pad (GST_ELEMENT (self), self->sink); -} - -static void -gst_deinterleave_add_new_pads (GstDeinterleave * self, GstCaps * caps) -{ - GstPad *pad; - - guint i; - - for (i = 0; i < self->channels; i++) { - gchar *name = g_strdup_printf ("src%d", i); - - GstCaps *srccaps; - - GstStructure *s; - - pad = gst_pad_new_from_static_template (&src_template, name); - g_free (name); - - /* Set channel position if we know it */ - if (self->keep_positions) { - GstAudioChannelPosition pos[1] = { GST_AUDIO_CHANNEL_POSITION_NONE }; - - srccaps = gst_caps_copy (caps); - s = gst_caps_get_structure (srccaps, 0); - if (self->pos) - gst_audio_set_channel_positions (s, &self->pos[i]); - else - gst_audio_set_channel_positions (s, pos); - } else { - srccaps = caps; - } - - gst_pad_set_caps (pad, srccaps); - gst_pad_use_fixed_caps (pad); - gst_pad_set_query_function (pad, - GST_DEBUG_FUNCPTR (gst_deinterleave_src_query)); - gst_pad_set_active (pad, TRUE); - gst_element_add_pad (GST_ELEMENT (self), pad); - self->srcpads = g_list_prepend (self->srcpads, gst_object_ref (pad)); - - if (self->keep_positions) - gst_caps_unref (srccaps); - } - - gst_element_no_more_pads (GST_ELEMENT (self)); - self->srcpads = g_list_reverse (self->srcpads); -} - -static void -gst_deinterleave_set_pads_caps (GstDeinterleave * self, GstCaps * caps) -{ - GList *l; - - GstStructure *s; - - gint i; - - for (l = self->srcpads, i = 0; l; l = l->next, i++) { - GstPad *pad = GST_PAD (l->data); - - GstCaps *srccaps; - - /* Set channel position if we know it */ - if (self->keep_positions) { - GstAudioChannelPosition pos[1] = { GST_AUDIO_CHANNEL_POSITION_NONE }; - - srccaps = gst_caps_copy (caps); - s = gst_caps_get_structure (srccaps, 0); - if (self->pos) - gst_audio_set_channel_positions (s, &self->pos[i]); - else - gst_audio_set_channel_positions (s, pos); - } else { - srccaps = caps; - } - - gst_pad_set_caps (pad, srccaps); - - if (self->keep_positions) - gst_caps_unref (srccaps); - } -} - -static void -gst_deinterleave_remove_pads (GstDeinterleave * self) -{ - GList *l; - - GST_INFO_OBJECT (self, "removing pads"); - - for (l = self->srcpads; l; l = l->next) { - GstPad *pad = GST_PAD (l->data); - - gst_element_remove_pad (GST_ELEMENT_CAST (self), pad); - gst_object_unref (pad); - } - g_list_free (self->srcpads); - self->srcpads = NULL; - - gst_pad_set_caps (self->sink, NULL); - gst_caps_replace (&self->sinkcaps, NULL); -} - -static gboolean -gst_deinterleave_set_process_function (GstDeinterleave * self, GstCaps * caps) -{ - GstStructure *s; - - s = gst_caps_get_structure (caps, 0); - if (!gst_structure_get_int (s, "width", &self->width)) - return FALSE; - - switch (self->width) { - case 8: - self->func = (GstDeinterleaveFunc) deinterleave_8; - break; - case 16: - self->func = (GstDeinterleaveFunc) deinterleave_16; - break; - case 24: - self->func = (GstDeinterleaveFunc) deinterleave_24; - break; - case 32: - self->func = (GstDeinterleaveFunc) deinterleave_32; - break; - case 64: - self->func = (GstDeinterleaveFunc) deinterleave_64; - break; - default: - return FALSE; - } - return TRUE; -} - -static gboolean -gst_deinterleave_sink_setcaps (GstPad * pad, GstCaps * caps) -{ - GstDeinterleave *self; - - GstCaps *srccaps; - - GstStructure *s; - - self = GST_DEINTERLEAVE (gst_pad_get_parent (pad)); - - GST_DEBUG_OBJECT (self, "got caps: %" GST_PTR_FORMAT, caps); - - if (self->sinkcaps && !gst_caps_is_equal (caps, self->sinkcaps)) { - gint new_channels, i; - - GstAudioChannelPosition *pos; - - gboolean same_layout = TRUE; - - s = gst_caps_get_structure (caps, 0); - - /* We allow caps changes as long as the number of channels doesn't change - * and the channel positions stay the same. _getcaps() should've cared - * for this already but better be safe. - */ - if (!gst_structure_get_int (s, "channels", &new_channels) || - new_channels != self->channels || - !gst_deinterleave_set_process_function (self, caps)) - goto cannot_change_caps; - - /* Now check the channel positions. If we had no channel positions - * and get them or the other way around things have changed. - * If we had channel positions and get different ones things have - * changed too of course - */ - pos = gst_audio_get_channel_positions (s); - if ((pos && !self->pos) || (!pos && self->pos)) - goto cannot_change_caps; - - if (pos) { - for (i = 0; i < self->channels; i++) { - if (self->pos[i] != pos[i]) { - same_layout = FALSE; - break; - } - } - g_free (pos); - if (!same_layout) - goto cannot_change_caps; - } - - } else { - s = gst_caps_get_structure (caps, 0); - - if (!gst_structure_get_int (s, "channels", &self->channels)) - goto no_channels; - - if (!gst_deinterleave_set_process_function (self, caps)) - goto unsupported_caps; - - self->pos = gst_audio_get_channel_positions (s); - } - - gst_caps_replace (&self->sinkcaps, caps); - - /* Get srcpad caps */ - srccaps = gst_caps_copy (caps); - s = gst_caps_get_structure (srccaps, 0); - gst_structure_set (s, "channels", G_TYPE_INT, 1, NULL); - gst_structure_remove_field (s, "channel-positions"); - - /* If we already have pads, update the caps otherwise - * add new pads */ - if (self->srcpads) { - gst_deinterleave_set_pads_caps (self, srccaps); - } else { - gst_deinterleave_add_new_pads (self, srccaps); - } - - gst_caps_unref (srccaps); - gst_object_unref (self); - - return TRUE; - -cannot_change_caps: - { - GST_ERROR_OBJECT (self, "can't set new caps: %" GST_PTR_FORMAT, caps); - gst_object_unref (self); - return FALSE; - } -unsupported_caps: - { - GST_ERROR_OBJECT (self, "caps not supported: %" GST_PTR_FORMAT, caps); - gst_object_unref (self); - return FALSE; - } -no_channels: - { - GST_ERROR_OBJECT (self, "invalid caps"); - gst_object_unref (self); - return FALSE; - } -} - -static void -__remove_channels (GstCaps * caps) -{ - GstStructure *s; - - gint i, size; - - size = gst_caps_get_size (caps); - for (i = 0; i < size; i++) { - s = gst_caps_get_structure (caps, i); - gst_structure_remove_field (s, "channel-positions"); - gst_structure_remove_field (s, "channels"); - } -} - -static void -__set_channels (GstCaps * caps, gint channels) -{ - GstStructure *s; - - gint i, size; - - size = gst_caps_get_size (caps); - for (i = 0; i < size; i++) { - s = gst_caps_get_structure (caps, i); - if (channels > 0) - gst_structure_set (s, "channels", G_TYPE_INT, channels, NULL); - else - gst_structure_set (s, "channels", GST_TYPE_INT_RANGE, 1, G_MAXINT, NULL); - } -} - -static GstCaps * -gst_deinterleave_sink_getcaps (GstPad * pad) -{ - GstDeinterleave *self = GST_DEINTERLEAVE (gst_pad_get_parent (pad)); - - GstCaps *ret; - - GList *l; - - GST_OBJECT_LOCK (self); - /* Intersect all of our pad template caps with the peer caps of the pad - * to get all formats that are possible up- and downstream. - * - * For the pad for which the caps are requested we don't remove the channel - * informations as they must be in the returned caps and incompatibilities - * will be detected here already - */ - ret = gst_caps_new_any (); - for (l = GST_ELEMENT (self)->pads; l != NULL; l = l->next) { - GstPad *ourpad = GST_PAD (l->data); - - GstCaps *peercaps = NULL, *ourcaps; - - ourcaps = gst_caps_copy (gst_pad_get_pad_template_caps (ourpad)); - - if (pad == ourpad) { - if (GST_PAD_DIRECTION (pad) == GST_PAD_SINK) - __set_channels (ourcaps, self->channels); - else - __set_channels (ourcaps, 1); - } else { - __remove_channels (ourcaps); - /* Only ask for peer caps for other pads than pad - * as otherwise gst_pad_peer_get_caps() might call - * back into this function and deadlock - */ - peercaps = gst_pad_peer_get_caps (ourpad); - } - - /* If the peer exists and has caps add them to the intersection, - * otherwise assume that the peer accepts everything */ - if (peercaps) { - GstCaps *intersection; - - GstCaps *oldret = ret; - - __remove_channels (peercaps); - - intersection = gst_caps_intersect (peercaps, ourcaps); - - ret = gst_caps_intersect (ret, intersection); - gst_caps_unref (intersection); - gst_caps_unref (peercaps); - gst_caps_unref (oldret); - } else { - GstCaps *oldret = ret; - - ret = gst_caps_intersect (ret, ourcaps); - gst_caps_unref (oldret); - } - gst_caps_unref (ourcaps); - } - GST_OBJECT_UNLOCK (self); - - gst_object_unref (self); - - GST_DEBUG_OBJECT (pad, "Intersected caps to %" GST_PTR_FORMAT, ret); - - return ret; -} - -static gboolean -gst_deinterleave_sink_event (GstPad * pad, GstEvent * event) -{ - GstDeinterleave *self = GST_DEINTERLEAVE (gst_pad_get_parent (pad)); - - gboolean ret; - - GST_DEBUG ("Got %s event on pad %s:%s", GST_EVENT_TYPE_NAME (event), - GST_DEBUG_PAD_NAME (pad)); - - /* Send FLUSH_STOP, FLUSH_START and EOS immediately, no matter if - * we have src pads already or not. Queue all other events and - * push them after we have src pads - */ - switch (GST_EVENT_TYPE (event)) { - case GST_EVENT_FLUSH_STOP: - case GST_EVENT_FLUSH_START: - case GST_EVENT_EOS: - ret = gst_pad_event_default (pad, event); - break; - default: - if (self->srcpads) { - ret = gst_pad_event_default (pad, event); - } else { - GST_OBJECT_LOCK (self); - self->pending_events = g_list_append (self->pending_events, event); - GST_OBJECT_UNLOCK (self); - ret = TRUE; - } - break; - } - - gst_object_unref (self); - - return ret; -} - -static gboolean -gst_deinterleave_src_query (GstPad * pad, GstQuery * query) -{ - GstDeinterleave *self = GST_DEINTERLEAVE (gst_pad_get_parent (pad)); - - gboolean res; - - res = gst_pad_query_default (pad, query); - - if (res && GST_QUERY_TYPE (query) == GST_QUERY_DURATION) { - GstFormat format; - - gint64 dur; - - gst_query_parse_duration (query, &format, &dur); - - /* Need to divide by the number of channels in byte format - * to get the correct value. All other formats should be fine - */ - if (format == GST_FORMAT_BYTES && dur != -1) - gst_query_set_duration (query, format, dur / self->channels); - } else if (res && GST_QUERY_TYPE (query) == GST_QUERY_POSITION) { - GstFormat format; - - gint64 pos; - - gst_query_parse_position (query, &format, &pos); - - /* Need to divide by the number of channels in byte format - * to get the correct value. All other formats should be fine - */ - if (format == GST_FORMAT_BYTES && pos != -1) - gst_query_set_position (query, format, pos / self->channels); - } - - gst_object_unref (self); - return res; -} - -static void -gst_deinterleave_set_property (GObject * object, guint prop_id, - const GValue * value, GParamSpec * pspec) -{ - GstDeinterleave *self = GST_DEINTERLEAVE (object); - - switch (prop_id) { - case PROP_KEEP_POSITIONS: - self->keep_positions = g_value_get_boolean (value); - break; - default: - G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); - break; - } -} - -static void -gst_deinterleave_get_property (GObject * object, guint prop_id, - GValue * value, GParamSpec * pspec) -{ - GstDeinterleave *self = GST_DEINTERLEAVE (object); - - switch (prop_id) { - case PROP_KEEP_POSITIONS: - g_value_set_boolean (value, self->keep_positions); - break; - default: - G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); - break; - } -} - -static GstFlowReturn -gst_deinterleave_process (GstDeinterleave * self, GstBuffer * buf) -{ - GstFlowReturn ret = GST_FLOW_OK; - - guint channels = self->channels; - - guint pads_pushed = 0, buffers_allocated = 0; - - guint nframes = GST_BUFFER_SIZE (buf) / channels / (self->width / 8); - - guint bufsize = nframes * (self->width / 8); - - guint i; - - GList *srcs; - - GstBuffer **buffers_out = g_new0 (GstBuffer *, channels); - - guint8 *in, *out; - - /* Send any pending events to all src pads */ - GST_OBJECT_LOCK (self); - if (self->pending_events) { - GList *events; - - GstEvent *event; - - GST_DEBUG_OBJECT (self, "Sending pending events to all src pads"); - - for (events = self->pending_events; events != NULL; events = events->next) { - event = GST_EVENT (events->data); - - for (srcs = self->srcpads; srcs != NULL; srcs = srcs->next) - gst_pad_push_event (GST_PAD (srcs->data), gst_event_ref (event)); - gst_event_unref (event); - } - - g_list_free (self->pending_events); - self->pending_events = NULL; - } - GST_OBJECT_UNLOCK (self); - - /* Allocate buffers */ - for (srcs = self->srcpads, i = 0; srcs; srcs = srcs->next, i++) { - GstPad *pad = (GstPad *) srcs->data; - - buffers_out[i] = NULL; - ret = - gst_pad_alloc_buffer (pad, GST_BUFFER_OFFSET_NONE, bufsize, - GST_PAD_CAPS (pad), &buffers_out[i]); - - /* Make sure we got a correct buffer. The only other case we allow - * here is an unliked pad */ - if (ret != GST_FLOW_OK && ret != GST_FLOW_NOT_LINKED) - goto alloc_buffer_failed; - else if (buffers_out[i] && GST_BUFFER_SIZE (buffers_out[i]) != bufsize) - goto alloc_buffer_bad_size; - else if (buffers_out[i] && - !gst_caps_is_equal (GST_BUFFER_CAPS (buffers_out[i]), - GST_PAD_CAPS (pad))) - goto invalid_caps; - - if (buffers_out[i]) { - gst_buffer_copy_metadata (buffers_out[i], buf, - GST_BUFFER_COPY_TIMESTAMPS | GST_BUFFER_COPY_FLAGS); - buffers_allocated++; - } - } - - /* Return NOT_LINKED if no pad was linked */ - if (!buffers_allocated) { - GST_WARNING_OBJECT (self, - "Couldn't allocate any buffers because no pad was linked"); - ret = GST_FLOW_NOT_LINKED; - goto done; - } - - /* deinterleave */ - for (srcs = self->srcpads, i = 0; srcs; srcs = srcs->next, i++) { - GstPad *pad = (GstPad *) srcs->data; - - in = (guint8 *) GST_BUFFER_DATA (buf); - in += i * (self->width / 8); - if (buffers_out[i]) { - out = (guint8 *) GST_BUFFER_DATA (buffers_out[i]); - - self->func (out, in, channels, nframes); - - ret = gst_pad_push (pad, buffers_out[i]); - buffers_out[i] = NULL; - if (ret == GST_FLOW_OK) - pads_pushed++; - else if (ret == GST_FLOW_NOT_LINKED) - ret = GST_FLOW_OK; - else - goto push_failed; - } - } - - /* Return NOT_LINKED if no pad was linked */ - if (!pads_pushed) - ret = GST_FLOW_NOT_LINKED; - -done: - gst_buffer_unref (buf); - g_free (buffers_out); - return ret; - -alloc_buffer_failed: - { - GST_WARNING ("gst_pad_alloc_buffer() returned %s", gst_flow_get_name (ret)); - goto clean_buffers; - - } -alloc_buffer_bad_size: - { - GST_WARNING ("called alloc_buffer(), but didn't get requested bytes"); - ret = GST_FLOW_NOT_NEGOTIATED; - goto clean_buffers; - } -invalid_caps: - { - GST_WARNING ("called alloc_buffer(), but didn't get requested caps"); - ret = GST_FLOW_NOT_NEGOTIATED; - goto clean_buffers; - } -push_failed: - { - GST_DEBUG ("push() failed, flow = %s", gst_flow_get_name (ret)); - goto clean_buffers; - } -clean_buffers: - { - for (i = 0; i < channels; i++) { - if (buffers_out[i]) - gst_buffer_unref (buffers_out[i]); - } - gst_buffer_unref (buf); - g_free (buffers_out); - return ret; - } -} - -static GstFlowReturn -gst_deinterleave_chain (GstPad * pad, GstBuffer * buffer) -{ - GstDeinterleave *self = GST_DEINTERLEAVE (GST_PAD_PARENT (pad)); - - GstFlowReturn ret; - - g_return_val_if_fail (self->func != NULL, GST_FLOW_NOT_NEGOTIATED); - g_return_val_if_fail (self->width > 0, GST_FLOW_NOT_NEGOTIATED); - g_return_val_if_fail (self->channels > 0, GST_FLOW_NOT_NEGOTIATED); - - ret = gst_deinterleave_process (self, buffer); - - if (ret != GST_FLOW_OK) - GST_DEBUG_OBJECT (self, "flow return: %s", gst_flow_get_name (ret)); - - return ret; -} - -static gboolean -gst_deinterleave_sink_activate_push (GstPad * pad, gboolean active) -{ - GstDeinterleave *self = GST_DEINTERLEAVE (gst_pad_get_parent (pad)); - - /* Reset everything when the pad is deactivated */ - if (!active) { - gst_deinterleave_remove_pads (self); - if (self->pos) { - g_free (self->pos); - self->pos = NULL; - } - self->channels = 0; - self->width = 0; - self->func = NULL; - - if (self->pending_events) { - g_list_foreach (self->pending_events, (GFunc) gst_mini_object_unref, - NULL); - g_list_free (self->pending_events); - self->pending_events = NULL; - } - } - - gst_object_unref (self); - - return TRUE; -} |