#include <libavcodec/avcodec.h>
#include <libavformat/avformat.h>
}
-#include "film.h"
#include "filter.h"
#include "exceptions.h"
#include "image.h"
using boost::dynamic_pointer_cast;
using dcp::Size;
-FFmpegDecoder::FFmpegDecoder (shared_ptr<const Film> f, shared_ptr<const FFmpegContent> c, bool video, bool audio)
- : Decoder (f)
- , VideoDecoder (f, c)
- , AudioDecoder (f, c)
- , SubtitleDecoder (f)
+FFmpegDecoder::FFmpegDecoder (shared_ptr<const FFmpegContent> c, shared_ptr<Log> log, bool video, bool audio, bool subtitles)
+ : VideoDecoder (c)
+ , AudioDecoder (c)
, FFmpeg (c)
+ , _log (log)
, _subtitle_codec_context (0)
, _subtitle_codec (0)
, _decode_video (video)
, _decode_audio (audio)
+ , _decode_subtitles (subtitles)
, _pts_offset (0)
{
setup_subtitle ();
/* Now adjust both so that the video pts starts on a frame */
if (have_video && have_audio) {
- double first_video = c->first_video().get() + _pts_offset;
- double const old_first_video = first_video;
-
- /* Round the first video up to a frame boundary */
- if (fabs (rint (first_video * c->video_frame_rate()) - first_video * c->video_frame_rate()) > 1e-6) {
- first_video = ceil (first_video * c->video_frame_rate()) / c->video_frame_rate ();
- }
-
- _pts_offset += first_video - old_first_video;
+ ContentTime first_video = c->first_video().get() + _pts_offset;
+ ContentTime const old_first_video = first_video;
+ _pts_offset += first_video.round_up (c->video_frame_rate ()) - old_first_video;
}
}
/* Maybe we should fail here, but for now we'll just finish off instead */
char buf[256];
av_strerror (r, buf, sizeof(buf));
- shared_ptr<const Film> film = _film.lock ();
- assert (film);
- film->log()->log (String::compose (N_("error on av_read_frame (%1) (%2)"), buf, r));
+ _log->log (String::compose (N_("error on av_read_frame (%1) (%2)"), buf, r));
}
flush ();
return true;
}
- shared_ptr<const Film> film = _film.lock ();
- assert (film);
-
int const si = _packet.stream_index;
if (si == _video_stream && _decode_video) {
decode_video_packet ();
} else if (_ffmpeg_content->audio_stream() && _ffmpeg_content->audio_stream()->uses_index (_format_context, si) && _decode_audio) {
decode_audio_packet ();
- } else if (_ffmpeg_content->subtitle_stream() && _ffmpeg_content->subtitle_stream()->uses_index (_format_context, si) && film->with_subtitles ()) {
+ } else if (_ffmpeg_content->subtitle_stream() && _ffmpeg_content->subtitle_stream()->uses_index (_format_context, si) && _decode_subtitles) {
decode_subtitle_packet ();
}
shared_ptr<AudioBuffers> audio (new AudioBuffers (_ffmpeg_content->audio_channels(), frames));
switch (audio_sample_format()) {
+ case AV_SAMPLE_FMT_U8:
+ {
+ uint8_t* p = reinterpret_cast<uint8_t *> (data[0]);
+ int sample = 0;
+ int channel = 0;
+ for (int i = 0; i < total_samples; ++i) {
+ audio->data(channel)[sample] = float(*p++) / (1 << 23);
+
+ ++channel;
+ if (channel == _ffmpeg_content->audio_channels()) {
+ channel = 0;
+ ++sample;
+ }
+ }
+ }
+ break;
+
case AV_SAMPLE_FMT_S16:
{
int16_t* p = reinterpret_cast<int16_t *> (data[0]);
int finished = 0;
r = avcodec_decode_video2 (video_codec_context(), _frame, &finished, &_packet);
if (r >= 0 && finished) {
- last_video = ContentTime::from_seconds (av_frame_get_best_effort_timestamp (_frame) * time_base + _pts_offset);
+ last_video = ContentTime::from_seconds (av_frame_get_best_effort_timestamp (_frame) * time_base) + _pts_offset;
}
} else if (_ffmpeg_content->audio_stream() && _ffmpeg_content->audio_stream()->uses_index (_format_context, _packet.stream_index)) {
int finished;
r = avcodec_decode_audio4 (audio_codec_context(), _frame, &finished, &_packet);
if (r >= 0 && finished) {
- last_audio = ContentTime::from_seconds (av_frame_get_best_effort_timestamp (_frame) * time_base + _pts_offset);
+ last_audio = ContentTime::from_seconds (av_frame_get_best_effort_timestamp (_frame) * time_base) + _pts_offset;
}
copy_packet.data += r;
void
FFmpegDecoder::seek_and_flush (ContentTime t)
{
- int64_t s = (t.seconds() - _pts_offset) / av_q2d (_format_context->streams[_video_stream]->time_base);
+ ContentTime const u = t - _pts_offset;
+ int64_t s = u.seconds() / av_q2d (_format_context->streams[_video_stream]->time_base);
if (_ffmpeg_content->audio_stream ()) {
s = min (
- s, int64_t ((t.seconds() - _pts_offset) / av_q2d (_ffmpeg_content->audio_stream()->stream(_format_context)->time_base))
+ s, int64_t (u.seconds() / av_q2d (_ffmpeg_content->audio_stream()->stream(_format_context)->time_base))
);
}
int const decode_result = avcodec_decode_audio4 (audio_codec_context(), _frame, &frame_finished, ©_packet);
if (decode_result < 0) {
- shared_ptr<const Film> film = _film.lock ();
- assert (film);
- film->log()->log (String::compose ("avcodec_decode_audio4 failed (%1)", decode_result));
+ _log->log (String::compose ("avcodec_decode_audio4 failed (%1)", decode_result));
return;
}
if (frame_finished) {
ContentTime const ct = ContentTime::from_seconds (
av_frame_get_best_effort_timestamp (_frame) *
- av_q2d (_ffmpeg_content->audio_stream()->stream (_format_context)->time_base)
- + _pts_offset
- );
+ av_q2d (_ffmpeg_content->audio_stream()->stream (_format_context)->time_base))
+ + _pts_offset;
int const data_size = av_samples_get_buffer_size (
0, audio_codec_context()->channels, _frame->nb_samples, audio_sample_format (), 1
}
if (i == _filter_graphs.end ()) {
- shared_ptr<const Film> film = _film.lock ();
- assert (film);
-
graph.reset (new FilterGraph (_ffmpeg_content, dcp::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));
+ _log->log (String::compose (N_("New graph for %1x%2, pixel format %3"), _frame->width, _frame->height, _frame->format));
} else {
graph = *i;
}
list<pair<shared_ptr<Image>, int64_t> > images = graph->process (_frame);
- string post_process = Filter::ffmpeg_strings (_ffmpeg_content->filters()).second;
-
for (list<pair<shared_ptr<Image>, int64_t> >::iterator i = images.begin(); i != images.end(); ++i) {
shared_ptr<Image> image = i->first;
- if (!post_process.empty ()) {
- image = image->post_process (post_process, true);
- }
if (i->second != AV_NOPTS_VALUE) {
- video (image, false, ContentTime::from_seconds (i->second * av_q2d (_format_context->streams[_video_stream]->time_base) + _pts_offset));
+ video (image, false, ContentTime::from_seconds (i->second * av_q2d (_format_context->streams[_video_stream]->time_base)) + _pts_offset);
} else {
- shared_ptr<const Film> film = _film.lock ();
- assert (film);
- film->log()->log ("Dropping frame without PTS");
+ _log->log ("Dropping frame without PTS");
}
}
throw DecodeError (_("multi-part subtitles not yet supported"));
}
- /* Subtitle PTS in seconds (within the source, not taking into account any of the
+ /* Subtitle PTS (within the source, not taking into account any of the
source that we may have chopped off for the DCP)
*/
- double const packet_time = (static_cast<double> (sub.pts) / AV_TIME_BASE) + _pts_offset;
+ ContentTime packet_time = ContentTime::from_seconds (static_cast<double> (sub.pts) / AV_TIME_BASE) + _pts_offset;
/* hence start time for this sub */
- ContentTime const from = ContentTime::from_seconds (packet_time + (double (sub.start_display_time) / 1e3));
- ContentTime const to = ContentTime::from_seconds (packet_time + (double (sub.end_display_time) / 1e3));
+ ContentTime const from = packet_time + ContentTime::from_seconds (sub.start_display_time / 1e3);
+ ContentTime const to = packet_time + ContentTime::from_seconds (sub.end_display_time / 1e3);
AVSubtitleRect const * rect = sub.rects[0];
projects / dcpomatic.git / blobdiff