--- /dev/null
+/* Schrodinger
+ * Copyright (C) 2006 David Schleef <ds@schleef.org>
+ *
+ * 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "gstbasevideocodec.h"
+
+#include <string.h>
+#include <math.h>
+
+GST_DEBUG_CATEGORY (basevideocodec_debug);
+#define GST_CAT_DEFAULT basevideocodec_debug
+
+/* GstBaseVideoCodec signals and args */
+enum
+{
+ LAST_SIGNAL
+};
+
+enum
+{
+ ARG_0
+};
+
+static void gst_base_video_codec_finalize (GObject * object);
+
+//static const GstQueryType *gst_base_video_codec_get_query_types (GstPad *pad);
+//static gboolean gst_base_video_codec_src_query (GstPad *pad, GstQuery *query);
+//static gboolean gst_base_video_codec_sink_query (GstPad *pad, GstQuery *query);
+//static gboolean gst_base_video_codec_src_event (GstPad *pad, GstEvent *event);
+//static gboolean gst_base_video_codec_sink_event (GstPad *pad, GstEvent *event);
+static GstStateChangeReturn gst_base_video_codec_change_state (GstElement *
+ element, GstStateChange transition);
+//static GstFlowReturn gst_base_video_codec_push_all (GstBaseVideoCodec *base_video_codec,
+// gboolean at_eos);
+
+
+GST_BOILERPLATE (GstBaseVideoCodec, gst_base_video_codec, GstElement,
+ GST_TYPE_ELEMENT);
+
+static void
+gst_base_video_codec_base_init (gpointer g_class)
+{
+ GST_DEBUG_CATEGORY_INIT (basevideocodec_debug, "basevideocodec", 0,
+ "Base Video Codec");
+
+}
+
+static void
+gst_base_video_codec_class_init (GstBaseVideoCodecClass * klass)
+{
+ GObjectClass *gobject_class;
+ GstElementClass *element_class;
+
+ gobject_class = G_OBJECT_CLASS (klass);
+ element_class = GST_ELEMENT_CLASS (klass);
+
+ gobject_class->finalize = gst_base_video_codec_finalize;
+
+ element_class->change_state = gst_base_video_codec_change_state;
+}
+
+static void
+gst_base_video_codec_init (GstBaseVideoCodec * base_video_codec,
+ GstBaseVideoCodecClass * klass)
+{
+ GstPadTemplate *pad_template;
+
+ GST_DEBUG ("gst_base_video_codec_init");
+
+ pad_template =
+ gst_element_class_get_pad_template (GST_ELEMENT_CLASS (klass), "sink");
+ g_return_if_fail (pad_template != NULL);
+
+ base_video_codec->sinkpad = gst_pad_new_from_template (pad_template, "sink");
+ //gst_pad_set_query_function (base_video_codec->sinkpad,
+ // gst_base_video_codec_sink_query);
+ gst_element_add_pad (GST_ELEMENT (base_video_codec),
+ base_video_codec->sinkpad);
+
+ pad_template =
+ gst_element_class_get_pad_template (GST_ELEMENT_CLASS (klass), "src");
+ g_return_if_fail (pad_template != NULL);
+
+ base_video_codec->srcpad = gst_pad_new_from_template (pad_template, "src");
+ gst_element_add_pad (GST_ELEMENT (base_video_codec),
+ base_video_codec->srcpad);
+
+ base_video_codec->input_adapter = gst_adapter_new ();
+ base_video_codec->output_adapter = gst_adapter_new ();
+
+}
+
+static void
+gst_base_video_codec_reset (GstBaseVideoCodec * base_video_codec)
+{
+ GST_DEBUG ("reset");
+
+ base_video_codec->system_frame_number = 0;
+
+ //gst_segment_init (&base_video_codec->state.segment, GST_FORMAT_TIME);
+ gst_adapter_clear (base_video_codec->input_adapter);
+ gst_adapter_clear (base_video_codec->output_adapter);
+
+}
+
+static void
+gst_base_video_codec_finalize (GObject * object)
+{
+ GstBaseVideoCodec *base_video_codec;
+
+ g_return_if_fail (GST_IS_BASE_VIDEO_CODEC (object));
+ base_video_codec = GST_BASE_VIDEO_CODEC (object);
+
+ if (base_video_codec->input_adapter) {
+ g_object_unref (base_video_codec->input_adapter);
+ }
+ if (base_video_codec->output_adapter) {
+ g_object_unref (base_video_codec->output_adapter);
+ }
+
+ G_OBJECT_CLASS (parent_class)->finalize (object);
+}
+
+#ifdef unused
+static const GstQueryType *
+gst_base_video_codec_get_query_types (GstPad * pad)
+{
+ static const GstQueryType query_types[] = {
+ GST_QUERY_POSITION,
+ GST_QUERY_DURATION,
+ GST_QUERY_CONVERT,
+ 0
+ };
+
+ return query_types;
+}
+#endif
+
+#if 0
+static gboolean
+gst_base_video_codec_src_convert (GstPad * pad,
+ GstFormat src_format, gint64 src_value,
+ GstFormat * dest_format, gint64 * dest_value)
+{
+ gboolean res;
+ GstBaseVideoCodec *dec;
+
+ if (src_format == *dest_format) {
+ *dest_value = src_value;
+ return TRUE;
+ }
+
+ dec = GST_BASE_VIDEO_CODEC (gst_pad_get_parent (pad));
+
+ if (src_format == GST_FORMAT_DEFAULT && *dest_format == GST_FORMAT_TIME) {
+ if (dec->fps_d != 0) {
+ *dest_value = gst_util_uint64_scale (granulepos_to_frame (src_value),
+ dec->fps_d * GST_SECOND, dec->fps_n);
+ res = TRUE;
+ } else {
+ res = FALSE;
+ }
+ } else {
+ GST_WARNING ("unhandled conversion from %d to %d", src_format,
+ *dest_format);
+ res = FALSE;
+ }
+
+ gst_object_unref (dec);
+
+ return res;
+}
+
+static gboolean
+gst_base_video_codec_sink_convert (GstPad * pad,
+ GstFormat src_format, gint64 src_value,
+ GstFormat * dest_format, gint64 * dest_value)
+{
+ gboolean res = TRUE;
+ GstBaseVideoCodec *dec;
+
+ if (src_format == *dest_format) {
+ *dest_value = src_value;
+ return TRUE;
+ }
+
+ dec = GST_BASE_VIDEO_CODEC (gst_pad_get_parent (pad));
+
+ /* FIXME: check if we are in a decoding state */
+
+ switch (src_format) {
+ case GST_FORMAT_DEFAULT:
+ switch (*dest_format) {
+ case GST_FORMAT_TIME:
+ *dest_value = gst_util_uint64_scale (src_value,
+ dec->fps_d * GST_SECOND, dec->fps_n);
+ break;
+ default:
+ res = FALSE;
+ }
+ break;
+ case GST_FORMAT_TIME:
+ switch (*dest_format) {
+ case GST_FORMAT_DEFAULT:
+ {
+ *dest_value = gst_util_uint64_scale (src_value,
+ dec->fps_n, dec->fps_d * GST_SECOND);
+ break;
+ }
+ default:
+ res = FALSE;
+ break;
+ }
+ break;
+ default:
+ res = FALSE;
+ break;
+ }
+
+ gst_object_unref (dec);
+
+ return res;
+}
+#endif
+
+#ifdef unused
+static gboolean
+gst_base_video_codec_src_query (GstPad * pad, GstQuery * query)
+{
+ GstBaseVideoCodec *base_codec;
+ gboolean res = FALSE;
+
+ base_codec = GST_BASE_VIDEO_CODEC (gst_pad_get_parent (pad));
+
+ switch (GST_QUERY_TYPE (query)) {
+ case GST_QUERY_POSITION:
+ {
+ GstFormat format;
+ gint64 time;
+ gint64 value;
+
+ gst_query_parse_position (query, &format, NULL);
+
+ time = gst_util_uint64_scale (base_codec->system_frame_number,
+ base_codec->state.fps_n, base_codec->state.fps_d);
+ time += base_codec->state.segment.time;
+ GST_DEBUG ("query position %" GST_TIME_FORMAT, GST_TIME_ARGS (time));
+ res = gst_base_video_encoded_video_convert (&base_codec->state,
+ GST_FORMAT_TIME, time, &format, &value);
+ if (!res)
+ goto error;
+
+ gst_query_set_position (query, format, value);
+ break;
+ }
+ case GST_QUERY_DURATION:
+ res = gst_pad_query (GST_PAD_PEER (base_codec->sinkpad), query);
+ if (!res)
+ goto error;
+ break;
+ case GST_QUERY_CONVERT:
+ {
+ GstFormat src_fmt, dest_fmt;
+ gint64 src_val, dest_val;
+
+ GST_DEBUG ("query convert");
+
+ gst_query_parse_convert (query, &src_fmt, &src_val, &dest_fmt, &dest_val);
+ res = gst_base_video_encoded_video_convert (&base_codec->state,
+ src_fmt, src_val, &dest_fmt, &dest_val);
+ if (!res)
+ goto error;
+ gst_query_set_convert (query, src_fmt, src_val, dest_fmt, dest_val);
+ break;
+ }
+ default:
+ res = gst_pad_query_default (pad, query);
+ break;
+ }
+done:
+ gst_object_unref (base_codec);
+
+ return res;
+error:
+ GST_DEBUG_OBJECT (base_codec, "query failed");
+ goto done;
+}
+#endif
+
+#ifdef unused
+static gboolean
+gst_base_video_codec_sink_query (GstPad * pad, GstQuery * query)
+{
+ GstBaseVideoCodec *base_video_codec;
+ gboolean res = FALSE;
+
+ base_video_codec = GST_BASE_VIDEO_CODEC (gst_pad_get_parent (pad));
+
+ switch (GST_QUERY_TYPE (query)) {
+ case GST_QUERY_CONVERT:
+ {
+ GstFormat src_fmt, dest_fmt;
+ gint64 src_val, dest_val;
+
+ gst_query_parse_convert (query, &src_fmt, &src_val, &dest_fmt, &dest_val);
+ res = gst_base_video_encoded_video_convert (&base_video_codec->state,
+ src_fmt, src_val, &dest_fmt, &dest_val);
+ if (!res)
+ goto error;
+ gst_query_set_convert (query, src_fmt, src_val, dest_fmt, dest_val);
+ break;
+ }
+ default:
+ res = gst_pad_query_default (pad, query);
+ break;
+ }
+done:
+ gst_object_unref (base_video_codec);
+
+ return res;
+error:
+ GST_DEBUG_OBJECT (base_video_codec, "query failed");
+ goto done;
+}
+#endif
+
+#ifdef unused
+static gboolean
+gst_base_video_codec_src_event (GstPad * pad, GstEvent * event)
+{
+ GstBaseVideoCodec *base_video_codec;
+ gboolean res = FALSE;
+
+ base_video_codec = GST_BASE_VIDEO_CODEC (gst_pad_get_parent (pad));
+
+ switch (GST_EVENT_TYPE (event)) {
+ case GST_EVENT_SEEK:
+ {
+ GstFormat format, tformat;
+ gdouble rate;
+ GstEvent *real_seek;
+ GstSeekFlags flags;
+ GstSeekType cur_type, stop_type;
+ gint64 cur, stop;
+ gint64 tcur, tstop;
+
+ gst_event_parse_seek (event, &rate, &format, &flags, &cur_type,
+ &cur, &stop_type, &stop);
+ gst_event_unref (event);
+
+ tformat = GST_FORMAT_TIME;
+ res = gst_base_video_encoded_video_convert (&base_video_codec->state,
+ format, cur, &tformat, &tcur);
+ if (!res)
+ goto convert_error;
+ res = gst_base_video_encoded_video_convert (&base_video_codec->state,
+ format, stop, &tformat, &tstop);
+ if (!res)
+ goto convert_error;
+
+ real_seek = gst_event_new_seek (rate, GST_FORMAT_TIME,
+ flags, cur_type, tcur, stop_type, tstop);
+
+ res = gst_pad_push_event (base_video_codec->sinkpad, real_seek);
+
+ break;
+ }
+#if 0
+ case GST_EVENT_QOS:
+ {
+ gdouble proportion;
+ GstClockTimeDiff diff;
+ GstClockTime timestamp;
+
+ gst_event_parse_qos (event, &proportion, &diff, ×tamp);
+
+ GST_OBJECT_LOCK (base_video_codec);
+ base_video_codec->proportion = proportion;
+ base_video_codec->earliest_time = timestamp + diff;
+ GST_OBJECT_UNLOCK (base_video_codec);
+
+ GST_DEBUG_OBJECT (base_video_codec,
+ "got QoS %" GST_TIME_FORMAT ", %" G_GINT64_FORMAT,
+ GST_TIME_ARGS (timestamp), diff);
+
+ res = gst_pad_push_event (base_video_codec->sinkpad, event);
+ break;
+ }
+#endif
+ default:
+ res = gst_pad_push_event (base_video_codec->sinkpad, event);
+ break;
+ }
+done:
+ gst_object_unref (base_video_codec);
+ return res;
+
+convert_error:
+ GST_DEBUG_OBJECT (base_video_codec, "could not convert format");
+ goto done;
+}
+#endif
+
+#ifdef unused
+static gboolean
+gst_base_video_codec_sink_event (GstPad * pad, GstEvent * event)
+{
+ GstBaseVideoCodec *base_video_codec;
+ gboolean ret = FALSE;
+
+ base_video_codec = GST_BASE_VIDEO_CODEC (gst_pad_get_parent (pad));
+
+ switch (GST_EVENT_TYPE (event)) {
+ case GST_EVENT_FLUSH_START:
+ ret = gst_pad_push_event (base_video_codec->srcpad, event);
+ break;
+ case GST_EVENT_FLUSH_STOP:
+ gst_base_video_codec_reset (base_video_codec);
+ ret = gst_pad_push_event (base_video_codec->srcpad, event);
+ break;
+ case GST_EVENT_EOS:
+ if (gst_base_video_codec_push_all (base_video_codec,
+ FALSE) == GST_FLOW_ERROR) {
+ gst_event_unref (event);
+ return FALSE;
+ }
+
+ ret = gst_pad_push_event (base_video_codec->srcpad, event);
+ break;
+ case GST_EVENT_NEWSEGMENT:
+ {
+ gboolean update;
+ GstFormat format;
+ gdouble rate;
+ gint64 start, stop, time;
+
+ gst_event_parse_new_segment (event, &update, &rate, &format, &start,
+ &stop, &time);
+
+ if (format != GST_FORMAT_TIME)
+ goto newseg_wrong_format;
+
+ if (rate <= 0.0)
+ goto newseg_wrong_rate;
+
+ GST_DEBUG ("newsegment %" GST_TIME_FORMAT " %" GST_TIME_FORMAT,
+ GST_TIME_ARGS (start), GST_TIME_ARGS (time));
+ gst_segment_set_newsegment (&base_video_codec->state.segment, update,
+ rate, format, start, stop, time);
+
+ ret = gst_pad_push_event (base_video_codec->srcpad, event);
+ break;
+ }
+ default:
+ ret = gst_pad_push_event (base_video_codec->srcpad, event);
+ break;
+ }
+done:
+ gst_object_unref (base_video_codec);
+ return ret;
+
+newseg_wrong_format:
+ GST_DEBUG_OBJECT (base_video_codec, "received non TIME newsegment");
+ gst_event_unref (event);
+ goto done;
+
+newseg_wrong_rate:
+ GST_DEBUG_OBJECT (base_video_codec, "negative rates not supported");
+ gst_event_unref (event);
+ goto done;
+}
+#endif
+
+
+static GstStateChangeReturn
+gst_base_video_codec_change_state (GstElement * element,
+ GstStateChange transition)
+{
+ GstBaseVideoCodec *base_video_codec = GST_BASE_VIDEO_CODEC (element);
+ GstStateChangeReturn ret;
+
+ switch (transition) {
+ case GST_STATE_CHANGE_NULL_TO_READY:
+ break;
+ case GST_STATE_CHANGE_READY_TO_PAUSED:
+ gst_base_video_codec_reset (base_video_codec);
+ break;
+ case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
+ break;
+ default:
+ break;
+ }
+
+ ret = parent_class->change_state (element, transition);
+
+ switch (transition) {
+ case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
+ break;
+ case GST_STATE_CHANGE_PAUSED_TO_READY:
+ gst_base_video_codec_reset (base_video_codec);
+ break;
+ case GST_STATE_CHANGE_READY_TO_NULL:
+ break;
+ default:
+ break;
+ }
+
+ return ret;
+}
+
+#if 0
+guint64
+gst_base_video_codec_get_timestamp (GstBaseVideoCodec * base_video_codec,
+ int picture_number)
+{
+ if (picture_number < 0) {
+ return base_video_codec->timestamp_offset -
+ (gint64) gst_util_uint64_scale (-picture_number,
+ base_video_codec->state.fps_d * GST_SECOND,
+ base_video_codec->state.fps_n);
+ } else {
+ return base_video_codec->timestamp_offset +
+ gst_util_uint64_scale (picture_number,
+ base_video_codec->state.fps_d * GST_SECOND,
+ base_video_codec->state.fps_n);
+ }
+}
+#endif
+
+GstVideoFrame *
+gst_base_video_codec_new_frame (GstBaseVideoCodec * base_video_codec)
+{
+ GstVideoFrame *frame;
+
+ frame = g_malloc0 (sizeof (GstVideoFrame));
+
+ frame->system_frame_number = base_video_codec->system_frame_number;
+ base_video_codec->system_frame_number++;
+
+ return frame;
+}
+
+void
+gst_base_video_codec_free_frame (GstVideoFrame * frame)
+{
+ if (frame->sink_buffer) {
+ gst_buffer_unref (frame->sink_buffer);
+ }
+#if 0
+ if (frame->src_buffer) {
+ gst_buffer_unref (frame->src_buffer);
+ }
+#endif
+
+ g_free (frame);
+}
--- /dev/null
+/* GStreamer
+ * Copyright (C) 2008 David Schleef <ds@schleef.org>
+ *
+ * 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "gstbasevideodecoder.h"
+
+#include <string.h>
+
+GST_DEBUG_CATEGORY (basevideodecoder_debug);
+#define GST_CAT_DEFAULT basevideodecoder_debug
+
+static void gst_base_video_decoder_finalize (GObject * object);
+
+static gboolean gst_base_video_decoder_sink_setcaps (GstPad * pad,
+ GstCaps * caps);
+static gboolean gst_base_video_decoder_sink_event (GstPad * pad,
+ GstEvent * event);
+static gboolean gst_base_video_decoder_src_event (GstPad * pad,
+ GstEvent * event);
+static GstFlowReturn gst_base_video_decoder_chain (GstPad * pad,
+ GstBuffer * buf);
+static gboolean gst_base_video_decoder_sink_query (GstPad * pad,
+ GstQuery * query);
+//static GstFlowReturn gst_base_video_decoder_process (GstBaseVideoDecoder *base_video_decoder);
+static GstStateChangeReturn gst_base_video_decoder_change_state (GstElement *
+ element, GstStateChange transition);
+static const GstQueryType *gst_base_video_decoder_get_query_types (GstPad *
+ pad);
+static gboolean gst_base_video_decoder_src_query (GstPad * pad,
+ GstQuery * query);
+static gboolean gst_base_video_decoder_src_convert (GstPad * pad,
+ GstFormat src_format, gint64 src_value, GstFormat * dest_format,
+ gint64 * dest_value);
+static void gst_base_video_decoder_reset (GstBaseVideoDecoder *
+ base_video_decoder);
+
+static GstFlowReturn
+gst_base_video_decoder_have_frame_2 (GstBaseVideoDecoder * base_video_decoder);
+
+static guint64
+gst_base_video_decoder_get_timestamp (GstBaseVideoDecoder * base_video_decoder,
+ int picture_number);
+static guint64
+gst_base_video_decoder_get_field_timestamp (GstBaseVideoDecoder *
+ base_video_decoder, int field_offset);
+static guint64 gst_base_video_decoder_get_field_duration (GstBaseVideoDecoder *
+ base_video_decoder, int n_fields);
+static GstVideoFrame *gst_base_video_decoder_new_frame (GstBaseVideoDecoder *
+ base_video_decoder);
+static void gst_base_video_decoder_free_frame (GstVideoFrame * frame);
+
+GST_BOILERPLATE (GstBaseVideoDecoder, gst_base_video_decoder,
+ GstBaseVideoCodec, GST_TYPE_BASE_VIDEO_CODEC);
+
+static void
+gst_base_video_decoder_base_init (gpointer g_class)
+{
+ GST_DEBUG_CATEGORY_INIT (basevideodecoder_debug, "basevideodecoder", 0,
+ "Base Video Decoder");
+
+}
+
+static void
+gst_base_video_decoder_class_init (GstBaseVideoDecoderClass * klass)
+{
+ GObjectClass *gobject_class;
+ GstElementClass *gstelement_class;
+
+ gobject_class = G_OBJECT_CLASS (klass);
+ gstelement_class = GST_ELEMENT_CLASS (klass);
+
+ gobject_class->finalize = gst_base_video_decoder_finalize;
+
+ gstelement_class->change_state = gst_base_video_decoder_change_state;
+
+ parent_class = g_type_class_peek_parent (klass);
+}
+
+static void
+gst_base_video_decoder_init (GstBaseVideoDecoder * base_video_decoder,
+ GstBaseVideoDecoderClass * klass)
+{
+ GstPad *pad;
+
+ GST_DEBUG ("gst_base_video_decoder_init");
+
+ pad = GST_BASE_VIDEO_CODEC_SINK_PAD (base_video_decoder);
+
+ gst_pad_set_chain_function (pad, gst_base_video_decoder_chain);
+ gst_pad_set_event_function (pad, gst_base_video_decoder_sink_event);
+ gst_pad_set_setcaps_function (pad, gst_base_video_decoder_sink_setcaps);
+ gst_pad_set_query_function (pad, gst_base_video_decoder_sink_query);
+
+ pad = GST_BASE_VIDEO_CODEC_SRC_PAD (base_video_decoder);
+
+ gst_pad_set_event_function (pad, gst_base_video_decoder_src_event);
+ gst_pad_set_query_type_function (pad, gst_base_video_decoder_get_query_types);
+ gst_pad_set_query_function (pad, gst_base_video_decoder_src_query);
+ gst_pad_use_fixed_caps (pad);
+
+ base_video_decoder->input_adapter = gst_adapter_new ();
+ base_video_decoder->output_adapter = gst_adapter_new ();
+
+ gst_segment_init (&base_video_decoder->segment, GST_FORMAT_TIME);
+ gst_base_video_decoder_reset (base_video_decoder);
+
+ base_video_decoder->current_frame =
+ gst_base_video_decoder_new_frame (base_video_decoder);
+
+ base_video_decoder->sink_clipping = TRUE;
+}
+
+static gboolean
+gst_base_video_decoder_sink_setcaps (GstPad * pad, GstCaps * caps)
+{
+ GstBaseVideoDecoder *base_video_decoder;
+ GstBaseVideoDecoderClass *base_video_decoder_class;
+ GstStructure *structure;
+ const GValue *codec_data;
+ GstVideoState *state;
+ gboolean ret = TRUE;
+
+ base_video_decoder = GST_BASE_VIDEO_DECODER (gst_pad_get_parent (pad));
+ base_video_decoder_class =
+ GST_BASE_VIDEO_DECODER_GET_CLASS (base_video_decoder);
+
+ GST_DEBUG ("setcaps %" GST_PTR_FORMAT, caps);
+
+ state = &base_video_decoder->state;
+
+ if (state->codec_data) {
+ gst_buffer_unref (state->codec_data);
+ }
+ memset (state, 0, sizeof (GstVideoState));
+
+ structure = gst_caps_get_structure (caps, 0);
+
+ gst_video_format_parse_caps (caps, NULL, &state->width, &state->height);
+ gst_video_parse_caps_framerate (caps, &state->fps_n, &state->fps_d);
+ gst_video_parse_caps_pixel_aspect_ratio (caps, &state->par_n, &state->par_d);
+
+#if 0
+ /* requires 0.10.23 */
+ state->have_interlaced =
+ gst_video_format_parse_caps_interlaced (caps, &state->interlaced);
+#else
+ state->have_interlaced = gst_structure_get_boolean (structure,
+ "interlaced", &state->interlaced);
+#endif
+
+ codec_data = gst_structure_get_value (structure, "codec_data");
+ if (codec_data && G_VALUE_TYPE (codec_data) == GST_TYPE_BUFFER) {
+ state->codec_data = gst_value_get_buffer (codec_data);
+ }
+
+ if (base_video_decoder_class->start) {
+ ret = base_video_decoder_class->start (base_video_decoder);
+ }
+
+ g_object_unref (base_video_decoder);
+
+ return ret;
+}
+
+static void
+gst_base_video_decoder_finalize (GObject * object)
+{
+ GstBaseVideoDecoder *base_video_decoder;
+ GstBaseVideoDecoderClass *base_video_decoder_class;
+
+ g_return_if_fail (GST_IS_BASE_VIDEO_DECODER (object));
+ base_video_decoder = GST_BASE_VIDEO_DECODER (object);
+ base_video_decoder_class = GST_BASE_VIDEO_DECODER_GET_CLASS (object);
+
+ gst_base_video_decoder_reset (base_video_decoder);
+
+ if (base_video_decoder->input_adapter) {
+ g_object_unref (base_video_decoder->input_adapter);
+ base_video_decoder->input_adapter = NULL;
+ }
+ if (base_video_decoder->output_adapter) {
+ g_object_unref (base_video_decoder->output_adapter);
+ base_video_decoder->output_adapter = NULL;
+ }
+
+ GST_DEBUG_OBJECT (object, "finalize");
+
+ G_OBJECT_CLASS (parent_class)->finalize (object);
+}
+
+static gboolean
+gst_base_video_decoder_sink_event (GstPad * pad, GstEvent * event)
+{
+ GstBaseVideoDecoder *base_video_decoder;
+ GstBaseVideoDecoderClass *base_video_decoder_class;
+ gboolean ret = FALSE;
+
+ base_video_decoder = GST_BASE_VIDEO_DECODER (gst_pad_get_parent (pad));
+ base_video_decoder_class =
+ GST_BASE_VIDEO_DECODER_GET_CLASS (base_video_decoder);
+
+ switch (GST_EVENT_TYPE (event)) {
+ case GST_EVENT_EOS:
+ {
+ if (!base_video_decoder->packetized) {
+ GstFlowReturn flow_ret;
+
+ do {
+ flow_ret =
+ base_video_decoder_class->parse_data (base_video_decoder, TRUE);
+ } while (flow_ret == GST_FLOW_OK);
+ }
+
+ if (base_video_decoder_class->finish) {
+ base_video_decoder_class->finish (base_video_decoder);
+ }
+
+ ret =
+ gst_pad_push_event (GST_BASE_VIDEO_CODEC_SRC_PAD (base_video_decoder),
+ event);
+ }
+ break;
+ case GST_EVENT_NEWSEGMENT:
+ {
+ gboolean update;
+ double rate;
+ double applied_rate;
+ GstFormat format;
+ gint64 start;
+ gint64 stop;
+ gint64 position;
+ GstSegment *segment = &base_video_decoder->segment;
+
+ gst_event_parse_new_segment_full (event, &update, &rate,
+ &applied_rate, &format, &start, &stop, &position);
+
+ if (format != GST_FORMAT_TIME)
+ goto newseg_wrong_format;
+
+ if (!update) {
+ gst_base_video_decoder_reset (base_video_decoder);
+ }
+
+ base_video_decoder->timestamp_offset = start;
+
+ gst_segment_set_newsegment_full (segment,
+ update, rate, applied_rate, format, start, stop, position);
+ base_video_decoder->have_segment = TRUE;
+
+ GST_DEBUG_OBJECT (base_video_decoder,
+ "new segment: format %d rate %g start %" GST_TIME_FORMAT
+ " stop %" GST_TIME_FORMAT
+ " position %" GST_TIME_FORMAT
+ " update %d",
+ format, rate,
+ GST_TIME_ARGS (segment->start),
+ GST_TIME_ARGS (segment->stop), GST_TIME_ARGS (segment->time), update);
+
+ ret =
+ gst_pad_push_event (GST_BASE_VIDEO_CODEC_SRC_PAD (base_video_decoder),
+ event);
+ }
+ break;
+ case GST_EVENT_FLUSH_STOP:{
+ GST_OBJECT_LOCK (base_video_decoder);
+ base_video_decoder->earliest_time = GST_CLOCK_TIME_NONE;
+ base_video_decoder->proportion = 0.5;
+ GST_OBJECT_UNLOCK (base_video_decoder);
+ }
+ default:
+ /* FIXME this changes the order of events */
+ ret =
+ gst_pad_push_event (GST_BASE_VIDEO_CODEC_SRC_PAD (base_video_decoder),
+ event);
+ break;
+ }
+
+done:
+ gst_object_unref (base_video_decoder);
+ return ret;
+
+newseg_wrong_format:
+ {
+ GST_DEBUG_OBJECT (base_video_decoder, "received non TIME newsegment");
+ gst_event_unref (event);
+ goto done;
+ }
+}
+
+static gboolean
+gst_base_video_decoder_src_event (GstPad * pad, GstEvent * event)
+{
+ GstBaseVideoDecoder *base_video_decoder;
+ gboolean res = FALSE;
+
+ base_video_decoder = GST_BASE_VIDEO_DECODER (gst_pad_get_parent (pad));
+
+ switch (GST_EVENT_TYPE (event)) {
+ case GST_EVENT_SEEK:
+ {
+ GstFormat format, tformat;
+ gdouble rate;
+ GstEvent *real_seek;
+ GstSeekFlags flags;
+ GstSeekType cur_type, stop_type;
+ gint64 cur, stop;
+ gint64 tcur, tstop;
+
+ GST_DEBUG ("seek event");
+
+ gst_event_parse_seek (event, &rate, &format, &flags, &cur_type,
+ &cur, &stop_type, &stop);
+ gst_event_unref (event);
+
+ tformat = GST_FORMAT_TIME;
+ res =
+ gst_base_video_decoder_src_convert (pad, format, cur, &tformat,
+ &tcur);
+ if (!res)
+ goto convert_error;
+ res =
+ gst_base_video_decoder_src_convert (pad, format, stop, &tformat,
+ &tstop);
+ if (!res)
+ goto convert_error;
+
+ real_seek = gst_event_new_seek (rate, GST_FORMAT_TIME,
+ flags, cur_type, tcur, stop_type, tstop);
+
+ res =
+ gst_pad_push_event (GST_BASE_VIDEO_CODEC_SINK_PAD
+ (base_video_decoder), real_seek);
+
+ break;
+ }
+ case GST_EVENT_QOS:
+ {
+ gdouble proportion;
+ GstClockTimeDiff diff;
+ GstClockTime timestamp;
+ GstClockTime duration;
+
+ gst_event_parse_qos (event, &proportion, &diff, ×tamp);
+
+ GST_OBJECT_LOCK (base_video_decoder);
+ base_video_decoder->proportion = proportion;
+ if (G_LIKELY (GST_CLOCK_TIME_IS_VALID (timestamp))) {
+ if (G_UNLIKELY (diff > 0)) {
+ if (base_video_decoder->state.fps_n > 0)
+ duration =
+ gst_util_uint64_scale (GST_SECOND,
+ base_video_decoder->state.fps_d,
+ base_video_decoder->state.fps_n);
+ else
+ duration = 0;
+ base_video_decoder->earliest_time = timestamp + 2 * diff + duration;
+ } else {
+ base_video_decoder->earliest_time = timestamp + diff;
+ }
+ } else {
+ base_video_decoder->earliest_time = GST_CLOCK_TIME_NONE;
+ }
+ GST_OBJECT_UNLOCK (base_video_decoder);
+
+ GST_DEBUG_OBJECT (base_video_decoder,
+ "got QoS %" GST_TIME_FORMAT ", %" G_GINT64_FORMAT ", %g",
+ GST_TIME_ARGS (timestamp), diff, proportion);
+
+ res =
+ gst_pad_push_event (GST_BASE_VIDEO_CODEC_SINK_PAD
+ (base_video_decoder), event);
+ break;
+ }
+ default:
+ res =
+ gst_pad_push_event (GST_BASE_VIDEO_CODEC_SINK_PAD
+ (base_video_decoder), event);
+ break;
+ }
+done:
+ gst_object_unref (base_video_decoder);
+ return res;
+
+convert_error:
+ GST_DEBUG_OBJECT (base_video_decoder, "could not convert format");
+ goto done;
+}
+
+
+#if 0
+static gboolean
+gst_base_video_decoder_sink_convert (GstPad * pad,
+ GstFormat src_format, gint64 src_value,
+ GstFormat * dest_format, gint64 * dest_value)
+{
+ gboolean res = TRUE;
+ GstBaseVideoDecoder *enc;
+
+ if (src_format == *dest_format) {
+ *dest_value = src_value;
+ return TRUE;
+ }
+
+ enc = GST_BASE_VIDEO_DECODER (gst_pad_get_parent (pad));
+
+ /* FIXME: check if we are in a decoding state */
+
+ switch (src_format) {
+ case GST_FORMAT_BYTES:
+ switch (*dest_format) {
+#if 0
+ case GST_FORMAT_DEFAULT:
+ *dest_value = gst_util_uint64_scale_int (src_value, 1,
+ enc->bytes_per_picture);
+ break;
+#endif
+ case GST_FORMAT_TIME:
+ /* seems like a rather silly conversion, implement me if you like */
+ default:
+ res = FALSE;
+ }
+ break;
+ case GST_FORMAT_DEFAULT:
+ switch (*dest_format) {
+ case GST_FORMAT_TIME:
+ *dest_value = gst_util_uint64_scale (src_value,
+ GST_SECOND * enc->fps_d, enc->fps_n);
+ break;
+#if 0
+ case GST_FORMAT_BYTES:
+ *dest_value = gst_util_uint64_scale_int (src_value,
+ enc->bytes_per_picture, 1);
+ break;
+#endif
+ default:
+ res = FALSE;
+ }
+ break;
+ default:
+ res = FALSE;
+ break;
+ }
+}
+#endif
+
+static gboolean
+gst_base_video_decoder_src_convert (GstPad * pad,
+ GstFormat src_format, gint64 src_value,
+ GstFormat * dest_format, gint64 * dest_value)
+{
+ gboolean res = TRUE;
+ GstBaseVideoDecoder *enc;
+
+ if (src_format == *dest_format) {
+ *dest_value = src_value;
+ return TRUE;
+ }
+
+ enc = GST_BASE_VIDEO_DECODER (gst_pad_get_parent (pad));
+
+ /* FIXME: check if we are in a encoding state */
+
+ GST_DEBUG ("src convert");
+ switch (src_format) {
+#if 0
+ case GST_FORMAT_DEFAULT:
+ switch (*dest_format) {
+ case GST_FORMAT_TIME:
+ *dest_value = gst_util_uint64_scale (granulepos_to_frame (src_value),
+ enc->fps_d * GST_SECOND, enc->fps_n);
+ break;
+ default:
+ res = FALSE;
+ }
+ break;
+ case GST_FORMAT_TIME:
+ switch (*dest_format) {
+ case GST_FORMAT_DEFAULT:
+ {
+ *dest_value = gst_util_uint64_scale (src_value,
+ enc->fps_n, enc->fps_d * GST_SECOND);
+ break;
+ }
+ default:
+ res = FALSE;
+ break;
+ }
+ break;
+#endif
+ default:
+ res = FALSE;
+ break;
+ }
+
+ gst_object_unref (enc);
+
+ return res;
+}
+
+static const GstQueryType *
+gst_base_video_decoder_get_query_types (GstPad * pad)
+{
+ static const GstQueryType query_types[] = {
+ GST_QUERY_POSITION,
+ GST_QUERY_DURATION,
+ GST_QUERY_CONVERT,
+ 0
+ };
+
+ return query_types;
+}
+
+static gboolean
+gst_base_video_decoder_src_query (GstPad * pad, GstQuery * query)
+{
+ GstBaseVideoDecoder *enc;
+ gboolean res = TRUE;
+
+ enc = GST_BASE_VIDEO_DECODER (gst_pad_get_parent (pad));
+
+ switch GST_QUERY_TYPE
+ (query) {
+ case GST_QUERY_POSITION:
+ {
+ GstFormat format;
+ gint64 time;
+
+ gst_query_parse_position (query, &format, NULL);
+ GST_DEBUG ("query in format %d", format);
+
+ if (format != GST_FORMAT_TIME) {
+ goto error;
+ }
+
+ time = enc->last_timestamp;
+ time = gst_segment_to_stream_time (&enc->segment, GST_FORMAT_TIME, time);
+
+ gst_query_set_position (query, format, time);
+
+ res = TRUE;
+
+ break;
+ }
+ case GST_QUERY_DURATION:
+ {
+ res = gst_pad_peer_query (enc->base_video_codec.sinkpad, query);
+ break;
+ }
+ case GST_QUERY_CONVERT:
+ {
+ GstFormat src_fmt, dest_fmt;
+ gint64 src_val, dest_val;
+
+ GST_DEBUG ("convert query");
+
+ gst_query_parse_convert (query, &src_fmt, &src_val, &dest_fmt, &dest_val);
+ res =
+ gst_base_video_decoder_src_convert (pad, src_fmt, src_val, &dest_fmt,
+ &dest_val);
+ if (!res)
+ goto error;
+ gst_query_set_convert (query, src_fmt, src_val, dest_fmt, dest_val);
+ break;
+ }
+ default:
+ res = gst_pad_query_default (pad, query);
+ }
+ gst_object_unref (enc);
+ return res;
+
+error:
+ GST_ERROR_OBJECT (enc, "query failed");
+ gst_object_unref (enc);
+ return res;
+}
+
+static gboolean
+gst_base_video_decoder_sink_query (GstPad * pad, GstQuery * query)
+{
+ GstBaseVideoDecoder *base_video_decoder;
+ gboolean res = FALSE;
+
+ base_video_decoder = GST_BASE_VIDEO_DECODER (gst_pad_get_parent (pad));
+
+ GST_DEBUG_OBJECT (base_video_decoder, "sink query fps=%d/%d",
+ base_video_decoder->state.fps_n, base_video_decoder->state.fps_d);
+ switch (GST_QUERY_TYPE (query)) {
+ case GST_QUERY_CONVERT:
+ {
+ GstFormat src_fmt, dest_fmt;
+ gint64 src_val, dest_val;
+
+ gst_query_parse_convert (query, &src_fmt, &src_val, &dest_fmt, &dest_val);
+ res = gst_base_video_rawvideo_convert (&base_video_decoder->state,
+ src_fmt, src_val, &dest_fmt, &dest_val);
+ if (!res)
+ goto error;
+ gst_query_set_convert (query, src_fmt, src_val, dest_fmt, dest_val);
+ break;
+ }
+ default:
+ res = gst_pad_query_default (pad, query);
+ break;
+ }
+done:
+ gst_object_unref (base_video_decoder);
+
+ return res;
+error:
+ GST_DEBUG_OBJECT (base_video_decoder, "query failed");
+ goto done;
+}
+
+
+#if 0
+static gboolean
+gst_pad_is_negotiated (GstPad * pad)
+{
+ GstCaps *caps;
+
+ g_return_val_if_fail (pad != NULL, FALSE);
+
+ caps = gst_pad_get_negotiated_caps (pad);
+ if (caps) {
+ gst_caps_unref (caps);
+ return TRUE;
+ }
+
+ return FALSE;
+}
+#endif
+
+typedef struct _Timestamp Timestamp;
+struct _Timestamp
+{
+ guint64 offset;
+ GstClockTime timestamp;
+ GstClockTime duration;
+};
+
+static void
+gst_base_video_decoder_add_timestamp (GstBaseVideoDecoder * base_video_decoder,
+ GstBuffer * buffer)
+{
+ Timestamp *ts;
+
+ ts = g_malloc (sizeof (Timestamp));
+
+ GST_DEBUG ("adding timestamp %" GST_TIME_FORMAT " %" GST_TIME_FORMAT,
+ GST_TIME_ARGS (base_video_decoder->input_offset),
+ GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buffer)));
+
+ ts->offset = base_video_decoder->input_offset;
+ ts->timestamp = GST_BUFFER_TIMESTAMP (buffer);
+ ts->duration = GST_BUFFER_DURATION (buffer);
+
+ base_video_decoder->timestamps =
+ g_list_append (base_video_decoder->timestamps, ts);
+}
+
+static void
+gst_base_video_decoder_get_timestamp_at_offset (GstBaseVideoDecoder *
+ base_video_decoder, guint64 offset, GstClockTime * timestamp,
+ GstClockTime * duration)
+{
+ Timestamp *ts;
+ GList *g;
+
+ *timestamp = GST_CLOCK_TIME_NONE;
+ *duration = GST_CLOCK_TIME_NONE;
+
+ g = base_video_decoder->timestamps;
+ while (g) {
+ ts = g->data;
+ if (ts->offset <= offset) {
+ *timestamp = ts->timestamp;
+ *duration = ts->duration;
+ g_free (ts);
+ g = g_list_next (g);
+ base_video_decoder->timestamps =
+ g_list_remove (base_video_decoder->timestamps, ts);
+ } else {
+ break;
+ }
+ }
+
+ GST_DEBUG ("got timestamp %" GST_TIME_FORMAT " %" GST_TIME_FORMAT,
+ GST_TIME_ARGS (offset), GST_TIME_ARGS (*timestamp));
+}
+
+static void
+gst_base_video_decoder_reset (GstBaseVideoDecoder * base_video_decoder)
+{
+ GstBaseVideoDecoderClass *base_video_decoder_class;
+ GList *g;
+
+ base_video_decoder_class =
+ GST_BASE_VIDEO_DECODER_GET_CLASS (base_video_decoder);
+
+ GST_DEBUG ("reset");
+
+ base_video_decoder->started = FALSE;
+
+ base_video_decoder->discont = TRUE;
+ base_video_decoder->have_sync = FALSE;
+
+ base_video_decoder->timestamp_offset = GST_CLOCK_TIME_NONE;
+ base_video_decoder->system_frame_number = 0;
+ base_video_decoder->presentation_frame_number = 0;
+ base_video_decoder->base_picture_number = 0;
+ base_video_decoder->last_timestamp = GST_CLOCK_TIME_NONE;
+
+ base_video_decoder->input_offset = 0;
+ base_video_decoder->frame_offset = 0;
+
+ /* This function could be called from finalize() */
+ if (base_video_decoder->input_adapter) {
+ gst_adapter_clear (base_video_decoder->input_adapter);
+ }
+ if (base_video_decoder->output_adapter) {
+ gst_adapter_clear (base_video_decoder->output_adapter);
+ }
+
+ if (base_video_decoder->caps) {
+ gst_caps_unref (base_video_decoder->caps);
+ base_video_decoder->caps = NULL;
+ }
+ //gst_segment_init (&base_video_decoder->segment, GST_FORMAT_TIME);
+
+ if (base_video_decoder->current_frame) {
+ gst_base_video_decoder_free_frame (base_video_decoder->current_frame);
+ base_video_decoder->current_frame = NULL;
+ }
+
+ base_video_decoder->have_src_caps = FALSE;
+
+ for (g = g_list_first (base_video_decoder->frames); g; g = g_list_next (g)) {
+ GstVideoFrame *frame = g->data;
+ gst_base_video_decoder_free_frame (frame);
+ }
+ g_list_free (base_video_decoder->frames);
+ base_video_decoder->frames = NULL;
+
+ GST_OBJECT_LOCK (base_video_decoder);
+ base_video_decoder->earliest_time = GST_CLOCK_TIME_NONE;
+ base_video_decoder->proportion = 0.5;
+ GST_OBJECT_UNLOCK (base_video_decoder);
+
+ if (base_video_decoder_class->reset) {
+ base_video_decoder_class->reset (base_video_decoder);
+ }
+}
+
+static GstFlowReturn
+gst_base_video_decoder_chain (GstPad * pad, GstBuffer * buf)
+{
+ GstBaseVideoDecoder *base_video_decoder;
+ GstBaseVideoDecoderClass *klass;
+ GstFlowReturn ret;
+
+ GST_DEBUG ("chain %" GST_TIME_FORMAT " duration %" GST_TIME_FORMAT,
+ GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buf)),
+ GST_TIME_ARGS (GST_BUFFER_DURATION (buf)));
+
+#if 0
+ /* requiring the pad to be negotiated makes it impossible to use
+ * oggdemux or filesrc ! decoder */
+ if (!gst_pad_is_negotiated (pad)) {
+ GST_DEBUG ("not negotiated");
+ return GST_FLOW_NOT_NEGOTIATED;
+ }
+#endif
+
+ base_video_decoder = GST_BASE_VIDEO_DECODER (gst_pad_get_parent (pad));
+ klass = GST_BASE_VIDEO_DECODER_GET_CLASS (base_video_decoder);
+
+ GST_DEBUG_OBJECT (base_video_decoder, "chain");
+
+ if (!base_video_decoder->have_segment) {
+ GstEvent *event;
+ GstFlowReturn ret;
+
+ GST_WARNING
+ ("Received buffer without a new-segment. Assuming timestamps start from 0.");
+
+ gst_segment_set_newsegment_full (&base_video_decoder->segment,
+ FALSE, 1.0, 1.0, GST_FORMAT_TIME, 0, GST_CLOCK_TIME_NONE, 0);
+ base_video_decoder->have_segment = TRUE;
+
+ event = gst_event_new_new_segment (FALSE, 1.0, GST_FORMAT_TIME, 0,
+ GST_CLOCK_TIME_NONE, 0);
+
+ ret =
+ gst_pad_push_event (GST_BASE_VIDEO_CODEC_SRC_PAD (base_video_decoder),
+ event);
+ if (!ret) {
+ GST_ERROR ("new segment event ret=%d", ret);
+ return GST_FLOW_ERROR;
+ }
+ }
+
+ if (G_UNLIKELY (GST_BUFFER_FLAG_IS_SET (buf, GST_BUFFER_FLAG_DISCONT))) {
+ GST_DEBUG_OBJECT (base_video_decoder, "received DISCONT buffer");
+ gst_base_video_decoder_reset (base_video_decoder);
+ }
+
+ if (!base_video_decoder->started) {
+ klass->start (base_video_decoder);
+ base_video_decoder->started = TRUE;
+ }
+
+ if (base_video_decoder->current_frame == NULL) {
+ base_video_decoder->current_frame =
+ gst_base_video_decoder_new_frame (base_video_decoder);
+ }
+
+ if (GST_BUFFER_TIMESTAMP_IS_VALID (buf)) {
+ gst_base_video_decoder_add_timestamp (base_video_decoder, buf);
+ }
+ base_video_decoder->input_offset += GST_BUFFER_SIZE (buf);
+
+#if 0
+ if (base_video_decoder->timestamp_offset == GST_CLOCK_TIME_NONE &&
+ GST_BUFFER_TIMESTAMP (buf) != GST_CLOCK_TIME_NONE) {
+ GST_DEBUG ("got new offset %" GST_TIME_FORMAT,
+ GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buf)));
+ base_video_decoder->timestamp_offset = GST_BUFFER_TIMESTAMP (buf);
+ }
+#endif
+
+ if (base_video_decoder->packetized) {
+ base_video_decoder->current_frame->sink_buffer = buf;
+
+ ret = gst_base_video_decoder_have_frame_2 (base_video_decoder);
+ } else {
+
+ gst_adapter_push (base_video_decoder->input_adapter, buf);
+
+ if (!base_video_decoder->have_sync) {
+ int n, m;
+
+ GST_DEBUG ("no sync, scanning");
+
+ n = gst_adapter_available (base_video_decoder->input_adapter);
+ m = klass->scan_for_sync (base_video_decoder, FALSE, 0, n);
+ if (m == -1) {
+ gst_object_unref (base_video_decoder);
+ return GST_FLOW_OK;
+ }
+
+ if (m < 0) {
+ g_warning ("subclass returned negative scan %d", m);
+ }
+
+ if (m >= n) {
+ GST_ERROR ("subclass scanned past end %d >= %d", m, n);
+ }
+
+ gst_adapter_flush (base_video_decoder->input_adapter, m);
+
+ if (m < n) {
+ GST_DEBUG ("found possible sync after %d bytes (of %d)", m, n);
+
+ /* this is only "maybe" sync */
+ base_video_decoder->have_sync = TRUE;
+ }
+
+ if (!base_video_decoder->have_sync) {
+ gst_object_unref (base_video_decoder);
+ return GST_FLOW_OK;
+ }
+ }
+
+ do {
+ ret = klass->parse_data (base_video_decoder, FALSE);
+ } while (ret == GST_FLOW_OK);
+
+ if (ret == GST_BASE_VIDEO_DECODER_FLOW_NEED_DATA) {
+ gst_object_unref (base_video_decoder);
+ return GST_FLOW_OK;
+ }
+ }
+
+ gst_object_unref (base_video_decoder);
+ return ret;
+}
+
+static GstStateChangeReturn
+gst_base_video_decoder_change_state (GstElement * element,
+ GstStateChange transition)
+{
+ GstBaseVideoDecoder *base_video_decoder;
+ GstBaseVideoDecoderClass *base_video_decoder_class;
+ GstStateChangeReturn ret;
+
+ base_video_decoder = GST_BASE_VIDEO_DECODER (element);
+ base_video_decoder_class = GST_BASE_VIDEO_DECODER_GET_CLASS (element);
+
+ switch (transition) {
+ default:
+ break;
+ }
+
+ ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
+
+ switch (transition) {
+ case GST_STATE_CHANGE_PAUSED_TO_READY:
+ if (base_video_decoder_class->stop) {
+ base_video_decoder_class->stop (base_video_decoder);
+ }
+ break;
+ default:
+ break;
+ }
+
+ return ret;
+}
+
+static void
+gst_base_video_decoder_free_frame (GstVideoFrame * frame)
+{
+ g_return_if_fail (frame != NULL);
+
+ if (frame->sink_buffer) {
+ gst_buffer_unref (frame->sink_buffer);
+ }
+ if (frame->src_buffer) {
+ gst_buffer_unref (frame->src_buffer);
+ }
+
+ g_free (frame);
+}
+
+static GstVideoFrame *
+gst_base_video_decoder_new_frame (GstBaseVideoDecoder * base_video_decoder)
+{
+ GstVideoFrame *frame;
+
+ frame = g_malloc0 (sizeof (GstVideoFrame));
+
+ frame->system_frame_number = base_video_decoder->system_frame_number;
+ base_video_decoder->system_frame_number++;
+
+ frame->decode_frame_number = frame->system_frame_number -
+ base_video_decoder->reorder_depth;
+
+ frame->decode_timestamp = GST_CLOCK_TIME_NONE;
+ frame->presentation_timestamp = GST_CLOCK_TIME_NONE;
+ frame->presentation_duration = GST_CLOCK_TIME_NONE;
+ frame->n_fields = 2;
+
+ return frame;
+}
+
+GstFlowReturn
+gst_base_video_decoder_finish_frame (GstBaseVideoDecoder * base_video_decoder,
+ GstVideoFrame * frame)
+{
+ GstBaseVideoDecoderClass *base_video_decoder_class;
+ GstBuffer *src_buffer;
+
+ GST_DEBUG ("finish frame");
+
+ base_video_decoder_class =
+ GST_BASE_VIDEO_DECODER_GET_CLASS (base_video_decoder);
+
+ GST_DEBUG ("finish frame sync=%d pts=%" GST_TIME_FORMAT, frame->is_sync_point,
+ GST_TIME_ARGS (frame->presentation_timestamp));
+
+ if (GST_CLOCK_TIME_IS_VALID (frame->presentation_timestamp)) {
+ if (frame->presentation_timestamp != base_video_decoder->timestamp_offset) {
+ GST_DEBUG ("sync timestamp %" GST_TIME_FORMAT " diff %" GST_TIME_FORMAT,
+ GST_TIME_ARGS (frame->presentation_timestamp),
+ GST_TIME_ARGS (frame->presentation_timestamp -
+ base_video_decoder->segment.start));
+ base_video_decoder->timestamp_offset = frame->presentation_timestamp;
+ base_video_decoder->field_index = 0;
+ } else {
+ /* This case is for one initial timestamp and no others, e.g.,
+ * filesrc ! decoder ! xvimagesink */
+ GST_WARNING ("sync timestamp didn't change, ignoring");
+ frame->presentation_timestamp = GST_CLOCK_TIME_NONE;
+ }
+ } else {
+ if (frame->is_sync_point) {
+ GST_WARNING ("sync point doesn't have timestamp");
+ if (!GST_CLOCK_TIME_IS_VALID (base_video_decoder->timestamp_offset)) {
+ GST_WARNING
+ ("No base timestamp. Assuming frames start at segment start");
+ base_video_decoder->timestamp_offset =
+ base_video_decoder->segment.start;
+ base_video_decoder->field_index = 0;
+ }
+ }
+ }
+ frame->field_index = base_video_decoder->field_index;
+ base_video_decoder->field_index += frame->n_fields;
+
+ if (frame->presentation_timestamp == GST_CLOCK_TIME_NONE) {
+ frame->presentation_timestamp =
+ gst_base_video_decoder_get_field_timestamp (base_video_decoder,
+ frame->field_index);
+ frame->presentation_duration = GST_CLOCK_TIME_NONE;
+ frame->decode_timestamp =
+ gst_base_video_decoder_get_timestamp (base_video_decoder,
+ frame->decode_frame_number);
+ }
+ if (frame->presentation_duration == GST_CLOCK_TIME_NONE) {
+ frame->presentation_duration =
+ gst_base_video_decoder_get_field_duration (base_video_decoder,
+ frame->n_fields);
+ }
+
+ if (GST_CLOCK_TIME_IS_VALID (base_video_decoder->last_timestamp)) {
+ if (frame->presentation_timestamp < base_video_decoder->last_timestamp) {
+ GST_WARNING ("decreasing timestamp (%" GST_TIME_FORMAT " < %"
+ GST_TIME_FORMAT ")", GST_TIME_ARGS (frame->presentation_timestamp),
+ GST_TIME_ARGS (base_video_decoder->last_timestamp));
+ }
+ }
+ base_video_decoder->last_timestamp = frame->presentation_timestamp;
+
+ GST_BUFFER_FLAG_UNSET (frame->src_buffer, GST_BUFFER_FLAG_DELTA_UNIT);
+ if (base_video_decoder->state.interlaced) {
+#ifndef GST_VIDEO_BUFFER_TFF
+#define GST_VIDEO_BUFFER_TFF (GST_MINI_OBJECT_FLAG_LAST << 5)
+#endif
+#ifndef GST_VIDEO_BUFFER_RFF
+#define GST_VIDEO_BUFFER_RFF (GST_MINI_OBJECT_FLAG_LAST << 6)
+#endif
+#ifndef GST_VIDEO_BUFFER_ONEFIELD
+#define GST_VIDEO_BUFFER_ONEFIELD (GST_MINI_OBJECT_FLAG_LAST << 7)
+#endif
+ int tff = base_video_decoder->state.top_field_first;
+
+ if (frame->field_index & 1) {
+ tff ^= 1;
+ }
+ if (tff) {
+ GST_BUFFER_FLAG_SET (frame->src_buffer, GST_VIDEO_BUFFER_TFF);
+ } else {
+ GST_BUFFER_FLAG_UNSET (frame->src_buffer, GST_VIDEO_BUFFER_TFF);
+ }
+ GST_BUFFER_FLAG_UNSET (frame->src_buffer, GST_VIDEO_BUFFER_RFF);
+ GST_BUFFER_FLAG_UNSET (frame->src_buffer, GST_VIDEO_BUFFER_ONEFIELD);
+ if (frame->n_fields == 3) {
+ GST_BUFFER_FLAG_SET (frame->src_buffer, GST_VIDEO_BUFFER_RFF);
+ } else if (frame->n_fields == 1) {
+ GST_BUFFER_FLAG_UNSET (frame->src_buffer, GST_VIDEO_BUFFER_ONEFIELD);
+ }
+ }
+ if (base_video_decoder->discont) {
+ GST_BUFFER_FLAG_UNSET (frame->src_buffer, GST_BUFFER_FLAG_DISCONT);
+ base_video_decoder->discont = FALSE;
+ }
+
+ GST_BUFFER_TIMESTAMP (frame->src_buffer) = frame->presentation_timestamp;
+ GST_BUFFER_DURATION (frame->src_buffer) = frame->presentation_duration;
+ GST_BUFFER_OFFSET (frame->src_buffer) = GST_BUFFER_OFFSET_NONE;
+ GST_BUFFER_OFFSET_END (frame->src_buffer) = GST_BUFFER_OFFSET_NONE;
+
+ GST_DEBUG ("pushing frame %" GST_TIME_FORMAT,
+ GST_TIME_ARGS (frame->presentation_timestamp));
+
+ base_video_decoder->frames =
+ g_list_remove (base_video_decoder->frames, frame);
+
+ gst_base_video_decoder_set_src_caps (base_video_decoder);
+
+ src_buffer = frame->src_buffer;
+ frame->src_buffer = NULL;
+
+ gst_base_video_decoder_free_frame (frame);
+
+ if (base_video_decoder->sink_clipping) {
+ gint64 start = GST_BUFFER_TIMESTAMP (src_buffer);
+ gint64 stop = GST_BUFFER_TIMESTAMP (src_buffer) +
+ GST_BUFFER_DURATION (src_buffer);
+
+ if (gst_segment_clip (&base_video_decoder->segment, GST_FORMAT_TIME,
+ start, stop, &start, &stop)) {
+ GST_BUFFER_TIMESTAMP (src_buffer) = start;
+ GST_BUFFER_DURATION (src_buffer) = stop - start;
+ GST_DEBUG ("accepting buffer inside segment: %" GST_TIME_FORMAT
+ " %" GST_TIME_FORMAT
+ " seg %" GST_TIME_FORMAT " to %" GST_TIME_FORMAT
+ " time %" GST_TIME_FORMAT,
+ GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (src_buffer)),
+ GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (src_buffer) +
+ GST_BUFFER_DURATION (src_buffer)),
+ GST_TIME_ARGS (base_video_decoder->segment.start),
+ GST_TIME_ARGS (base_video_decoder->segment.stop),
+ GST_TIME_ARGS (base_video_decoder->segment.time));
+ } else {
+ GST_DEBUG ("dropping buffer outside segment: %" GST_TIME_FORMAT
+ " %" GST_TIME_FORMAT
+ " seg %" GST_TIME_FORMAT " to %" GST_TIME_FORMAT
+ " time %" GST_TIME_FORMAT,
+ GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (src_buffer)),
+ GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (src_buffer) +
+ GST_BUFFER_DURATION (src_buffer)),
+ GST_TIME_ARGS (base_video_decoder->segment.start),
+ GST_TIME_ARGS (base_video_decoder->segment.stop),
+ GST_TIME_ARGS (base_video_decoder->segment.time));
+ gst_buffer_unref (src_buffer);
+ return GST_FLOW_OK;
+ }
+ }
+
+ return gst_pad_push (GST_BASE_VIDEO_CODEC_SRC_PAD (base_video_decoder),
+ src_buffer);
+}
+
+GstFlowReturn
+gst_base_video_decoder_skip_frame (GstBaseVideoDecoder * base_video_decoder,
+ GstVideoFrame * frame)
+{
+ GstBaseVideoDecoderClass *base_video_decoder_class;
+
+ GST_DEBUG ("finish frame");
+
+ base_video_decoder_class =
+ GST_BASE_VIDEO_DECODER_GET_CLASS (base_video_decoder);
+
+ GST_DEBUG ("finish frame sync=%d pts=%" GST_TIME_FORMAT, frame->is_sync_point,
+ GST_TIME_ARGS (frame->presentation_timestamp));
+
+ if (GST_CLOCK_TIME_IS_VALID (frame->presentation_timestamp)) {
+ if (frame->presentation_timestamp != base_video_decoder->timestamp_offset) {
+ GST_DEBUG ("sync timestamp %" GST_TIME_FORMAT " diff %" GST_TIME_FORMAT,
+ GST_TIME_ARGS (frame->presentation_timestamp),
+ GST_TIME_ARGS (frame->presentation_timestamp -
+ base_video_decoder->segment.start));
+ base_video_decoder->timestamp_offset = frame->presentation_timestamp;
+ base_video_decoder->field_index = 0;
+ } else {
+ /* This case is for one initial timestamp and no others, e.g.,
+ * filesrc ! decoder ! xvimagesink */
+ GST_WARNING ("sync timestamp didn't change, ignoring");
+ frame->presentation_timestamp = GST_CLOCK_TIME_NONE;
+ }
+ } else {
+ if (frame->is_sync_point) {
+ GST_WARNING ("sync point doesn't have timestamp");
+ if (GST_CLOCK_TIME_IS_VALID (base_video_decoder->timestamp_offset)) {
+ GST_WARNING
+ ("No base timestamp. Assuming frames start at segment start");
+ base_video_decoder->timestamp_offset =
+ base_video_decoder->segment.start;
+ base_video_decoder->field_index = 0;
+ }
+ }
+ }
+ frame->field_index = base_video_decoder->field_index;
+ base_video_decoder->field_index += frame->n_fields;
+
+ if (frame->presentation_timestamp == GST_CLOCK_TIME_NONE) {
+ frame->presentation_timestamp =
+ gst_base_video_decoder_get_field_timestamp (base_video_decoder,
+ frame->field_index);
+ frame->presentation_duration = GST_CLOCK_TIME_NONE;
+ frame->decode_timestamp =
+ gst_base_video_decoder_get_timestamp (base_video_decoder,
+ frame->decode_frame_number);
+ }
+ if (frame->presentation_duration == GST_CLOCK_TIME_NONE) {
+ frame->presentation_duration =
+ gst_base_video_decoder_get_field_duration (base_video_decoder,
+ frame->n_fields);
+ }
+
+ base_video_decoder->last_timestamp = frame->presentation_timestamp;
+
+ GST_DEBUG ("skipping frame %" GST_TIME_FORMAT,
+ GST_TIME_ARGS (frame->presentation_timestamp));
+
+ base_video_decoder->frames =
+ g_list_remove (base_video_decoder->frames, frame);
+
+ gst_base_video_decoder_free_frame (frame);
+
+ return GST_FLOW_OK;
+}
+
+int
+gst_base_video_decoder_get_height (GstBaseVideoDecoder * base_video_decoder)
+{
+ return base_video_decoder->state.height;
+}
+
+int
+gst_base_video_decoder_get_width (GstBaseVideoDecoder * base_video_decoder)
+{
+ return base_video_decoder->state.width;
+}
+
+GstFlowReturn
+gst_base_video_decoder_end_of_stream (GstBaseVideoDecoder * base_video_decoder,
+ GstBuffer * buffer)
+{
+
+ if (base_video_decoder->frames) {
+ GST_DEBUG ("EOS with frames left over");
+ }
+
+ return gst_pad_push (GST_BASE_VIDEO_CODEC_SRC_PAD (base_video_decoder),
+ buffer);
+}
+
+void
+gst_base_video_decoder_add_to_frame (GstBaseVideoDecoder * base_video_decoder,
+ int n_bytes)
+{
+ GstBuffer *buf;
+
+ GST_DEBUG ("add to frame");
+
+ if (n_bytes == 0)
+ return;
+
+ if (gst_adapter_available (base_video_decoder->output_adapter) == 0) {
+ base_video_decoder->frame_offset = base_video_decoder->input_offset -
+ gst_adapter_available (base_video_decoder->input_adapter);
+ }
+ buf = gst_adapter_take_buffer (base_video_decoder->input_adapter, n_bytes);
+
+ gst_adapter_push (base_video_decoder->output_adapter, buf);
+}
+
+static guint64
+gst_base_video_decoder_get_timestamp (GstBaseVideoDecoder * base_video_decoder,
+ int picture_number)
+{
+ if (base_video_decoder->state.fps_d == 0) {
+ return -1;
+ }
+ if (picture_number < base_video_decoder->base_picture_number) {
+ return base_video_decoder->timestamp_offset -
+ (gint64) gst_util_uint64_scale (base_video_decoder->base_picture_number
+ - picture_number, base_video_decoder->state.fps_d * GST_SECOND,
+ base_video_decoder->state.fps_n);
+ } else {
+ return base_video_decoder->timestamp_offset +
+ gst_util_uint64_scale (picture_number -
+ base_video_decoder->base_picture_number,
+ base_video_decoder->state.fps_d * GST_SECOND,
+ base_video_decoder->state.fps_n);
+ }
+}
+
+static guint64
+gst_base_video_decoder_get_field_timestamp (GstBaseVideoDecoder *
+ base_video_decoder, int field_offset)
+{
+ if (base_video_decoder->state.fps_d == 0) {
+ return GST_CLOCK_TIME_NONE;
+ }
+ if (field_offset < 0) {
+ GST_WARNING ("field offset < 0");
+ return GST_CLOCK_TIME_NONE;
+ }
+ return base_video_decoder->timestamp_offset +
+ gst_util_uint64_scale (field_offset,
+ base_video_decoder->state.fps_d * GST_SECOND,
+ base_video_decoder->state.fps_n * 2);
+}
+
+static guint64
+gst_base_video_decoder_get_field_duration (GstBaseVideoDecoder *
+ base_video_decoder, int n_fields)
+{
+ if (base_video_decoder->state.fps_d == 0) {
+ return GST_CLOCK_TIME_NONE;
+ }
+ if (n_fields < 0) {
+ GST_WARNING ("n_fields < 0");
+ return GST_CLOCK_TIME_NONE;
+ }
+ return gst_util_uint64_scale (n_fields,
+ base_video_decoder->state.fps_d * GST_SECOND,
+ base_video_decoder->state.fps_n * 2);
+}
+
+
+GstFlowReturn
+gst_base_video_decoder_have_frame (GstBaseVideoDecoder * base_video_decoder)
+{
+ GstBuffer *buffer;
+ int n_available;
+ GstClockTime timestamp;
+ GstClockTime duration;
+
+ GST_DEBUG ("have_frame");
+
+ n_available = gst_adapter_available (base_video_decoder->output_adapter);
+ if (n_available) {
+ buffer = gst_adapter_take_buffer (base_video_decoder->output_adapter,
+ n_available);
+ } else {
+ buffer = gst_buffer_new_and_alloc (0);
+ }
+
+ base_video_decoder->current_frame->sink_buffer = buffer;
+
+ gst_base_video_decoder_get_timestamp_at_offset (base_video_decoder,
+ base_video_decoder->frame_offset, ×tamp, &duration);
+
+ GST_BUFFER_TIMESTAMP (buffer) = timestamp;
+ GST_BUFFER_DURATION (buffer) = duration;
+
+ return gst_base_video_decoder_have_frame_2 (base_video_decoder);
+}
+
+static GstFlowReturn
+gst_base_video_decoder_have_frame_2 (GstBaseVideoDecoder * base_video_decoder)
+{
+ GstVideoFrame *frame = base_video_decoder->current_frame;
+ GstBaseVideoDecoderClass *base_video_decoder_class;
+ GstFlowReturn ret = GST_FLOW_OK;
+ GstClockTime running_time;
+ GstClockTimeDiff deadline;
+
+ base_video_decoder_class =
+ GST_BASE_VIDEO_DECODER_GET_CLASS (base_video_decoder);
+
+ frame->distance_from_sync = base_video_decoder->distance_from_sync;
+ base_video_decoder->distance_from_sync++;
+
+ frame->presentation_timestamp = GST_BUFFER_TIMESTAMP (frame->sink_buffer);
+ frame->presentation_duration = GST_BUFFER_DURATION (frame->sink_buffer);
+
+ GST_DEBUG ("pts %" GST_TIME_FORMAT,
+ GST_TIME_ARGS (frame->presentation_timestamp));
+ GST_DEBUG ("dts %" GST_TIME_FORMAT, GST_TIME_ARGS (frame->decode_timestamp));
+ GST_DEBUG ("dist %d", frame->distance_from_sync);
+
+ base_video_decoder->frames = g_list_append (base_video_decoder->frames,
+ frame);
+
+ running_time = gst_segment_to_running_time (&base_video_decoder->segment,
+ GST_FORMAT_TIME, frame->presentation_timestamp);
+
+ if (GST_CLOCK_TIME_IS_VALID (base_video_decoder->earliest_time))
+ deadline = GST_CLOCK_DIFF (base_video_decoder->earliest_time, running_time);
+ else
+ deadline = G_MAXINT64;
+
+ /* do something with frame */
+ ret = base_video_decoder_class->handle_frame (base_video_decoder, frame,
+ deadline);
+ if (!GST_FLOW_IS_SUCCESS (ret)) {
+ GST_DEBUG ("flow error!");
+ }
+
+ /* create new frame */
+ base_video_decoder->current_frame =
+ gst_base_video_decoder_new_frame (base_video_decoder);
+
+ return ret;
+}
+
+GstVideoState *
+gst_base_video_decoder_get_state (GstBaseVideoDecoder * base_video_decoder)
+{
+ return &base_video_decoder->state;
+
+}
+
+void
+gst_base_video_decoder_set_state (GstBaseVideoDecoder * base_video_decoder,
+ GstVideoState * state)
+{
+ memcpy (&base_video_decoder->state, state, sizeof (*state));
+
+}
+
+void
+gst_base_video_decoder_lost_sync (GstBaseVideoDecoder * base_video_decoder)
+{
+ g_return_if_fail (GST_IS_BASE_VIDEO_DECODER (base_video_decoder));
+
+ GST_DEBUG ("lost_sync");
+
+ if (gst_adapter_available (base_video_decoder->input_adapter) >= 1) {
+ gst_adapter_flush (base_video_decoder->input_adapter, 1);
+ }
+
+ base_video_decoder->have_sync = FALSE;
+}
+
+void
+gst_base_video_decoder_set_sync_point (GstBaseVideoDecoder * base_video_decoder)
+{
+ GST_DEBUG ("set_sync_point");
+
+ base_video_decoder->current_frame->is_sync_point = TRUE;
+ base_video_decoder->distance_from_sync = 0;
+}
+
+GstVideoFrame *
+gst_base_video_decoder_get_oldest_frame (GstBaseVideoDecoder *
+ base_video_decoder)
+{
+ GList *g;
+
+ g = g_list_first (base_video_decoder->frames);
+
+ if (g == NULL)
+ return NULL;
+ return (GstVideoFrame *) (g->data);
+}
+
+GstVideoFrame *
+gst_base_video_decoder_get_frame (GstBaseVideoDecoder * base_video_decoder,
+ int frame_number)
+{
+ GList *g;
+
+ for (g = g_list_first (base_video_decoder->frames); g; g = g_list_next (g)) {
+ GstVideoFrame *frame = g->data;
+
+ if (frame->system_frame_number == frame_number) {
+ return frame;
+ }
+ }
+
+ return NULL;
+}
+
+void
+gst_base_video_decoder_set_src_caps (GstBaseVideoDecoder * base_video_decoder)
+{
+ GstCaps *caps;
+ GstVideoState *state = &base_video_decoder->state;
+
+ if (base_video_decoder->have_src_caps)
+ return;
+
+ caps = gst_video_format_new_caps (state->format,
+ state->width, state->height,
+ state->fps_n, state->fps_d, state->par_n, state->par_d);
+ gst_caps_set_simple (caps, "interlaced",
+ G_TYPE_BOOLEAN, state->interlaced, NULL);
+
+ GST_DEBUG ("setting caps %" GST_PTR_FORMAT, caps);
+
+ gst_pad_set_caps (GST_BASE_VIDEO_CODEC_SRC_PAD (base_video_decoder), caps);
+
+ base_video_decoder->have_src_caps = TRUE;
+
+ gst_caps_unref (caps);
+}
+
+GstFlowReturn
+gst_base_video_decoder_alloc_src_frame (GstBaseVideoDecoder *
+ base_video_decoder, GstVideoFrame * frame)
+{
+ GstFlowReturn flow_ret;
+ int num_bytes;
+
+ gst_base_video_decoder_set_src_caps (base_video_decoder);
+
+ num_bytes = gst_video_format_get_size (base_video_decoder->state.format,
+ base_video_decoder->state.width, base_video_decoder->state.height);
+ flow_ret =
+ gst_pad_alloc_buffer_and_set_caps (GST_BASE_VIDEO_CODEC_SRC_PAD
+ (base_video_decoder), GST_BUFFER_OFFSET_NONE, num_bytes,
+ GST_PAD_CAPS (GST_BASE_VIDEO_CODEC_SRC_PAD (base_video_decoder)),
+ &frame->src_buffer);
+
+ if (flow_ret != GST_FLOW_OK) {
+ GST_WARNING ("failed to get buffer");
+ }
+
+ return flow_ret;
+}
projects / platform / upstream / gstreamer-vaapi.git / commitdiff