diff options
Diffstat (limited to 'gst-libs/gst/video/gstbasevideodecoder.c')
| -rw-r--r-- | gst-libs/gst/video/gstbasevideodecoder.c | 1173 |
1 files changed, 0 insertions, 1173 deletions
diff --git a/gst-libs/gst/video/gstbasevideodecoder.c b/gst-libs/gst/video/gstbasevideodecoder.c deleted file mode 100644 index 9aa79eee1..000000000 --- a/gst-libs/gst/video/gstbasevideodecoder.c +++ /dev/null @@ -1,1173 +0,0 @@ -/* 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_EXTERN (basevideo_debug); -#define GST_CAT_DEFAULT basevideo_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 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 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 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) -{ - -} - -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); - - base_video_decoder->input_adapter = gst_adapter_new (); - base_video_decoder->output_adapter = gst_adapter_new (); - - gst_segment_init (&base_video_decoder->state.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; - - 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); - - if (base_video_decoder->codec_data) { - gst_buffer_unref (base_video_decoder->codec_data); - base_video_decoder->codec_data = NULL; - } - - structure = gst_caps_get_structure (caps, 0); - - codec_data = gst_structure_get_value (structure, "codec_data"); - if (codec_data && G_VALUE_TYPE (codec_data) == GST_TYPE_BUFFER) { - base_video_decoder->codec_data = gst_value_get_buffer (codec_data); - } - - if (base_video_decoder_class->start) { - base_video_decoder_class->start (base_video_decoder); - } - - g_object_unref (base_video_decoder); - - return TRUE; -} - -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); - - 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: - { - GstVideoFrame *frame; - - frame = g_malloc0 (sizeof (GstVideoFrame)); - frame->presentation_frame_number = - base_video_decoder->presentation_frame_number; - frame->presentation_duration = 0; - base_video_decoder->presentation_frame_number++; - - base_video_decoder->frames = - g_list_append (base_video_decoder->frames, frame); - if (base_video_decoder_class->finish) { - base_video_decoder_class->finish (base_video_decoder, frame); - } - - 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; - - gst_event_parse_new_segment_full (event, &update, &rate, - &applied_rate, &format, &start, &stop, &position); - - if (format != GST_FORMAT_TIME) - goto newseg_wrong_format; - - GST_DEBUG ("new segment %lld %lld", start, position); - - gst_segment_set_newsegment_full (&base_video_decoder->state.segment, - update, rate, applied_rate, format, start, stop, position); - - ret = - gst_pad_push_event (GST_BASE_VIDEO_CODEC_SRC_PAD (base_video_decoder), - event); - } - break; - 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_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; - - gst_event_parse_qos (event, &proportion, &diff, ×tamp); - - GST_OBJECT_LOCK (base_video_decoder); - base_video_decoder->proportion = proportion; - base_video_decoder->earliest_time = timestamp + diff; - 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_CONVERT, - 0 - }; - - return query_types; -} - -static gboolean -gst_base_video_decoder_src_query (GstPad * pad, GstQuery * query) -{ - GstBaseVideoDecoder *enc; - gboolean res; - - enc = GST_BASE_VIDEO_DECODER (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_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_DEBUG_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 - -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->last_sink_timestamp = GST_CLOCK_TIME_NONE; - base_video_decoder->last_sink_offset_end = GST_CLOCK_TIME_NONE; - base_video_decoder->base_picture_number = 0; - base_video_decoder->last_timestamp = GST_CLOCK_TIME_NONE; - - base_video_decoder->offset = 0; - - if (base_video_decoder->caps) { - gst_caps_unref (base_video_decoder->caps); - base_video_decoder->caps = NULL; - } - - 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; - - if (base_video_decoder_class->reset) { - base_video_decoder_class->reset (base_video_decoder); - } -} - -static GstBuffer * -gst_adapter_get_buffer (GstAdapter * adapter) -{ - return gst_buffer_ref (GST_BUFFER (adapter->buflist->data)); - -} - -static GstFlowReturn -gst_base_video_decoder_chain (GstPad * pad, GstBuffer * buf) -{ - GstBaseVideoDecoder *base_video_decoder; - GstBaseVideoDecoderClass *klass; - GstBuffer *buffer; - GstFlowReturn ret; - - GST_DEBUG ("chain %lld", GST_BUFFER_TIMESTAMP (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 (G_UNLIKELY (GST_BUFFER_FLAG_IS_SET (buf, GST_BUFFER_FLAG_DISCONT))) { - GST_DEBUG_OBJECT (base_video_decoder, "received DISCONT buffer"); - if (base_video_decoder->started) { - gst_base_video_decoder_reset (base_video_decoder); - } - } - - if (!base_video_decoder->started) { - klass->start (base_video_decoder); - base_video_decoder->started = TRUE; - } - - if (GST_BUFFER_TIMESTAMP (buf) != GST_CLOCK_TIME_NONE) { - GST_DEBUG ("timestamp %lld offset %lld", GST_BUFFER_TIMESTAMP (buf), - base_video_decoder->offset); - base_video_decoder->last_sink_timestamp = GST_BUFFER_TIMESTAMP (buf); - } - if (GST_BUFFER_OFFSET_END (buf) != -1) { - GST_DEBUG ("gp %lld", GST_BUFFER_OFFSET_END (buf)); - base_video_decoder->last_sink_offset_end = GST_BUFFER_OFFSET_END (buf); - } - base_video_decoder->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 %lld", GST_BUFFER_TIMESTAMP (buf)); - base_video_decoder->timestamp_offset = GST_BUFFER_TIMESTAMP (buf); - } -#endif - - if (base_video_decoder->current_frame == NULL) { - base_video_decoder->current_frame = - gst_base_video_decoder_new_frame (base_video_decoder); - } - - 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 >= n) { - g_warning ("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; - } - } - - /* FIXME: use gst_adapter_prev_timestamp() here instead? */ - buffer = gst_adapter_get_buffer (base_video_decoder->input_adapter); - - base_video_decoder->buffer_timestamp = GST_BUFFER_TIMESTAMP (buffer); - gst_buffer_unref (buffer); - - 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 0 - if (frame->src_buffer) { - gst_buffer_unref (frame->src_buffer); - } -#endif - - 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 = -1; - frame->presentation_timestamp = -1; - frame->presentation_duration = -1; - 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=%lld", frame->is_sync_point, - frame->presentation_timestamp); - - if (frame->is_sync_point) { - if (GST_CLOCK_TIME_IS_VALID (frame->presentation_timestamp)) { - if (frame->presentation_timestamp != base_video_decoder->timestamp_offset) { - GST_DEBUG ("sync timestamp %lld diff %lld", - frame->presentation_timestamp, - frame->presentation_timestamp - - base_video_decoder->state.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 { - GST_WARNING ("sync point doesn't have timestamp"); - if (GST_CLOCK_TIME_IS_VALID (base_video_decoder->timestamp_offset)) { - GST_ERROR ("No base timestamp. Assuming frames start at 0"); - base_video_decoder->timestamp_offset = 0; - 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_timestamp (base_video_decoder, - frame->field_index + frame->n_fields) - frame->presentation_timestamp; - } - - if (GST_CLOCK_TIME_IS_VALID (base_video_decoder->last_timestamp)) { - if (frame->presentation_timestamp < base_video_decoder->last_timestamp) { - GST_WARNING ("decreasing timestamp (%lld < %lld)", - frame->presentation_timestamp, 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); - } - } - - GST_BUFFER_TIMESTAMP (frame->src_buffer) = frame->presentation_timestamp; - GST_BUFFER_DURATION (frame->src_buffer) = frame->presentation_duration; - GST_BUFFER_OFFSET (frame->src_buffer) = -1; - GST_BUFFER_OFFSET_END (frame->src_buffer) = -1; - - GST_DEBUG ("pushing frame %lld", 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->state.segment, GST_FORMAT_TIME, - start, stop, &start, &stop)) { - GST_BUFFER_TIMESTAMP (src_buffer) = start; - GST_BUFFER_DURATION (src_buffer) = stop - start; - } else { - GST_DEBUG ("dropping buffer outside segment"); - gst_buffer_unref (src_buffer); - return GST_FLOW_OK; - } - } - - return gst_pad_push (GST_BASE_VIDEO_CODEC_SRC_PAD (base_video_decoder), - src_buffer); -} - -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 0 - if (gst_adapter_available (base_video_decoder->output_adapter) == 0) { - GstBuffer *buffer; - - buffer = - gst_adapter_get_orig_buffer_at_offset - (base_video_decoder->input_adapter, 0); - if (buffer) { - base_video_decoder->current_frame->presentation_timestamp = - GST_BUFFER_TIMESTAMP (buffer); - gst_buffer_unref (buffer); - } - } -#endif - - if (n_bytes == 0) - return; - - 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); -} - - -GstFlowReturn -gst_base_video_decoder_have_frame (GstBaseVideoDecoder * base_video_decoder) -{ - GstVideoFrame *frame = base_video_decoder->current_frame; - GstBuffer *buffer; - GstBaseVideoDecoderClass *base_video_decoder_class; - GstFlowReturn ret = GST_FLOW_OK; - int n_available; - - GST_DEBUG ("have_frame"); - - base_video_decoder_class = - GST_BASE_VIDEO_DECODER_GET_CLASS (base_video_decoder); - - 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); - } - - frame->distance_from_sync = base_video_decoder->distance_from_sync; - base_video_decoder->distance_from_sync++; - -#if 0 - if (frame->presentation_timestamp == GST_CLOCK_TIME_NONE) { - frame->presentation_timestamp = - gst_base_video_decoder_get_timestamp (base_video_decoder, - frame->presentation_frame_number); - frame->presentation_duration = - gst_base_video_decoder_get_timestamp (base_video_decoder, - frame->presentation_frame_number + 1) - frame->presentation_timestamp; - frame->decode_timestamp = - gst_base_video_decoder_get_timestamp (base_video_decoder, - frame->decode_frame_number); - } -#endif - -#if 0 - GST_BUFFER_TIMESTAMP (buffer) = frame->presentation_timestamp; - GST_BUFFER_DURATION (buffer) = frame->presentation_duration; - if (frame->decode_frame_number < 0) { - GST_BUFFER_OFFSET (buffer) = 0; - } else { - GST_BUFFER_OFFSET (buffer) = frame->decode_timestamp; - } - GST_BUFFER_OFFSET_END (buffer) = GST_CLOCK_TIME_NONE; -#endif - - 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); - - if (frame->is_sync_point) { - GST_BUFFER_FLAG_UNSET (buffer, GST_BUFFER_FLAG_DELTA_UNIT); - } else { - GST_BUFFER_FLAG_SET (buffer, GST_BUFFER_FLAG_DELTA_UNIT); - } - if (base_video_decoder->discont) { - GST_BUFFER_FLAG_SET (buffer, GST_BUFFER_FLAG_DISCONT); - base_video_decoder->discont = FALSE; - } - - frame->sink_buffer = buffer; - - base_video_decoder->frames = g_list_append (base_video_decoder->frames, - frame); - - /* do something with frame */ - ret = base_video_decoder_class->handle_frame (base_video_decoder, frame); - 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; - - base_video_decoder->current_frame->presentation_timestamp = - base_video_decoder->last_sink_timestamp; - - -} - -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; -} |