+/* -*- c-basic-offset: 8; default-tab-width: 8; -*- */
+
/*
Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
#include "ffmpeg_decoder.h"
#include "filter_graph.h"
#include "subtitle.h"
+#include "audio_buffers.h"
#include "i18n.h"
FFmpegDecoder::FFmpegDecoder (shared_ptr<const Film> f, shared_ptr<const FFmpegContent> c, bool video, bool audio, bool subtitles)
: Decoder (f)
- , VideoDecoder (f)
- , AudioDecoder (f)
+ , VideoDecoder (f, c)
+ , AudioDecoder (f, c)
, _ffmpeg_content (c)
, _format_context (0)
, _video_stream (-1)
}
_audio_streams.push_back (
- FFmpegAudioStream (stream_name (s), i, s->codec->sample_rate, s->codec->channels)
+ shared_ptr<FFmpegAudioStream> (
+ new FFmpegAudioStream (stream_name (s), i, s->codec->sample_rate, s->codec->channels)
+ )
);
-
+
} else if (s->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
- _subtitle_streams.push_back (FFmpegSubtitleStream (stream_name (s), i));
+ _subtitle_streams.push_back (shared_ptr<FFmpegSubtitleStream> (new FFmpegSubtitleStream (stream_name (s), i)));
}
}
FFmpegDecoder::pass ()
{
int r = av_read_frame (_format_context, &_packet);
-
+
if (r < 0) {
if (r != AVERROR_EOF) {
/* Maybe we should fail here, but for now we'll just finish off instead */
/* XXX: should we reset _packet.data and size after each *_decode_* call? */
- int frame_finished;
-
if (_decode_video) {
- while (avcodec_decode_video2 (_video_codec_context, _frame, &frame_finished, &_packet) >= 0 && frame_finished) {
- filter_and_emit_video ();
- }
+ while (decode_video_packet ());
}
if (_ffmpeg_content->audio_stream() && _decode_audio) {
avcodec_get_frame_defaults (_frame);
if (_packet.stream_index == _video_stream && _decode_video) {
-
- int frame_finished;
- int const r = avcodec_decode_video2 (_video_codec_context, _frame, &frame_finished, &_packet);
- if (r >= 0 && frame_finished) {
-
- if (r != _packet.size) {
- _film->log()->log (String::compose (N_("Used only %1 bytes of %2 in packet"), r, _packet.size));
- }
-
- filter_and_emit_video ();
- }
-
+ decode_video_packet ();
} else if (_ffmpeg_content->audio_stream() && _packet.stream_index == _ffmpeg_content->audio_stream()->id && _decode_audio) {
decode_audio_packet ();
} else if (_ffmpeg_content->subtitle_stream() && _packet.stream_index == _ffmpeg_content->subtitle_stream()->id && _decode_subtitles) {
return av_get_bytes_per_sample (audio_sample_format ());
}
-void
-FFmpegDecoder::filter_and_emit_video ()
-{
- boost::mutex::scoped_lock lm (_filter_graphs_mutex);
-
- shared_ptr<FilterGraph> graph;
-
- list<shared_ptr<FilterGraph> >::iterator i = _filter_graphs.begin();
- while (i != _filter_graphs.end() && !(*i)->can_process (libdcp::Size (_frame->width, _frame->height), (AVPixelFormat) _frame->format)) {
- ++i;
- }
-
- if (i == _filter_graphs.end ()) {
- graph.reset (new FilterGraph (_film, this, libdcp::Size (_frame->width, _frame->height), (AVPixelFormat) _frame->format));
- _filter_graphs.push_back (graph);
- _film->log()->log (String::compose (N_("New graph for %1x%2, pixel format %3"), _frame->width, _frame->height, _frame->format));
- } else {
- graph = *i;
- }
-
- list<shared_ptr<Image> > images = graph->process (_frame);
-
- for (list<shared_ptr<Image> >::iterator i = images.begin(); i != images.end(); ++i) {
- int64_t const bet = av_frame_get_best_effort_timestamp (_frame);
- if (bet != AV_NOPTS_VALUE) {
- emit_video (*i, false, bet * av_q2d (_format_context->streams[_video_stream]->time_base));
- } else {
- _film->log()->log ("Dropping frame without PTS");
- }
- }
-}
-
bool
FFmpegDecoder::seek (double p)
{
FFmpegDecoder::film_changed (Film::Property p)
{
switch (p) {
- case Film::CROP:
case Film::FILTERS:
{
boost::mutex::scoped_lock lm (_filter_graphs_mutex);
}
}
}
+
+bool
+FFmpegDecoder::decode_video_packet ()
+{
+ int frame_finished;
+ if (avcodec_decode_video2 (_video_codec_context, _frame, &frame_finished, &_packet) < 0 || !frame_finished) {
+ return false;
+ }
+
+ boost::mutex::scoped_lock lm (_filter_graphs_mutex);
+
+ shared_ptr<FilterGraph> graph;
+
+ list<shared_ptr<FilterGraph> >::iterator i = _filter_graphs.begin();
+ while (i != _filter_graphs.end() && !(*i)->can_process (libdcp::Size (_frame->width, _frame->height), (AVPixelFormat) _frame->format)) {
+ ++i;
+ }
+
+ if (i == _filter_graphs.end ()) {
+ graph.reset (new FilterGraph (_film, this, libdcp::Size (_frame->width, _frame->height), (AVPixelFormat) _frame->format));
+ _filter_graphs.push_back (graph);
+ _film->log()->log (String::compose (N_("New graph for %1x%2, pixel format %3"), _frame->width, _frame->height, _frame->format));
+ } else {
+ graph = *i;
+ }
+
+ list<shared_ptr<Image> > images = graph->process (_frame);
+
+ for (list<shared_ptr<Image> >::iterator i = images.begin(); i != images.end(); ++i) {
+ int64_t const bet = av_frame_get_best_effort_timestamp (_frame);
+ if (bet != AV_NOPTS_VALUE) {
+ /* XXX: may need to insert extra frames / remove frames here ...
+ (as per old Matcher)
+ */
+ emit_video (*i, false, bet * av_q2d (_format_context->streams[_video_stream]->time_base) * TIME_HZ);
+ } else {
+ _film->log()->log ("Dropping frame without PTS");
+ }
+ }
+
+ return true;
+}