, _subtitle_codec (0)
, _decode_video (video)
, _decode_audio (audio)
- , _video_pts_offset (0)
- , _audio_pts_offset (0)
- , _just_sought (false)
+ , _pts_offset (0)
{
setup_subtitle ();
Then we remove big initial gaps in PTS and we allow our
insertion of black frames to work.
- We will do:
- audio_pts_to_use = audio_pts_from_ffmpeg + audio_pts_offset;
- video_pts_to_use = video_pts_from_ffmpeg + video_pts_offset;
+ We will do pts_to_use = pts_from_ffmpeg + pts_offset;
*/
bool const have_video = video && c->first_video();
- bool const have_audio = audio && c->audio_stream() && c->audio_stream()->first_audio;
+ bool const have_audio = _decode_audio && c->audio_stream () && c->audio_stream()->first_audio;
/* First, make one of them start at 0 */
if (have_audio && have_video) {
- _video_pts_offset = _audio_pts_offset = - min (c->first_video().get(), c->audio_stream()->first_audio.get());
+ _pts_offset = - min (c->first_video().get(), c->audio_stream()->first_audio.get());
} else if (have_video) {
- _video_pts_offset = - c->first_video().get();
+ _pts_offset = - c->first_video().get();
} else if (have_audio) {
- _audio_pts_offset = - c->audio_stream()->first_audio.get();
+ _pts_offset = - c->audio_stream()->first_audio.get();
}
/* Now adjust both so that the video pts starts on a frame */
if (have_video && have_audio) {
- double first_video = c->first_video().get() + _video_pts_offset;
+ 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 */
first_video = ceil (first_video * c->video_frame_rate()) / c->video_frame_rate ();
}
- _video_pts_offset += first_video - old_first_video;
- _audio_pts_offset += first_video - old_first_video;
+ _pts_offset += first_video - old_first_video;
}
}
decode_audio_packet ();
}
- /* Stop us being asked for any more data */
- _video_position = _ffmpeg_content->video_length ();
- _audio_position = _ffmpeg_content->audio_length ();
+ AudioDecoder::flush ();
}
-void
+bool
FFmpegDecoder::pass ()
{
int r = av_read_frame (_format_context, &_packet);
}
flush ();
- return;
+ return true;
}
- avcodec_get_frame_defaults (_frame);
-
shared_ptr<const Film> film = _film.lock ();
assert (film);
}
av_free_packet (&_packet);
+ return false;
}
/** @param data pointer to array of pointers to buffers.
return av_get_bytes_per_sample (audio_sample_format ());
}
-void
-FFmpegDecoder::seek (VideoContent::Frame frame, bool accurate)
+int
+FFmpegDecoder::minimal_run (boost::function<bool (optional<ContentTime>, optional<ContentTime>, int)> finished)
{
- double const time_base = av_q2d (_format_context->streams[_video_stream]->time_base);
+ int frames_read = 0;
+ optional<ContentTime> last_video;
+ optional<ContentTime> last_audio;
- /* If we are doing an accurate seek, our initial shot will be 5 frames (5 being
- a number plucked from the air) earlier than we want to end up. The loop below
- will hopefully then step through to where we want to be.
- */
- int initial = frame;
+ while (!finished (last_video, last_audio, frames_read)) {
+ int r = av_read_frame (_format_context, &_packet);
+ if (r < 0) {
+ /* We should flush our decoders here, possibly yielding a few more frames,
+ but the consequence of having to do that is too hideous to contemplate.
+ Instead we give up and say that you can't seek too close to the end
+ of a file.
+ */
+ return frames_read;
+ }
- if (accurate) {
- initial -= 5;
+ ++frames_read;
+
+ double const time_base = av_q2d (_format_context->streams[_packet.stream_index]->time_base);
+
+ if (_packet.stream_index == _video_stream) {
+
+ avcodec_get_frame_defaults (_frame);
+
+ int finished = 0;
+ r = avcodec_decode_video2 (video_codec_context(), _frame, &finished, &_packet);
+ if (r >= 0 && finished) {
+ last_video = rint (
+ (av_frame_get_best_effort_timestamp (_frame) * time_base + _pts_offset) * TIME_HZ
+ );
+ }
+
+ } else if (_ffmpeg_content->audio_stream() && _packet.stream_index == _ffmpeg_content->audio_stream()->index (_format_context)) {
+ AVPacket copy_packet = _packet;
+ while (copy_packet.size > 0) {
+
+ int finished;
+ r = avcodec_decode_audio4 (audio_codec_context(), _frame, &finished, &_packet);
+ if (r >= 0 && finished) {
+ last_audio = rint (
+ (av_frame_get_best_effort_timestamp (_frame) * time_base + _pts_offset) * TIME_HZ
+ );
+ }
+
+ copy_packet.data += r;
+ copy_packet.size -= r;
+ }
+ }
+
+ av_free_packet (&_packet);
}
- if (initial < 0) {
- initial = 0;
+ return frames_read;
+}
+
+bool
+FFmpegDecoder::seek_overrun_finished (ContentTime seek, optional<ContentTime> last_video, optional<ContentTime> last_audio) const
+{
+ return (last_video && last_video.get() >= seek) || (last_audio && last_audio.get() >= seek);
+}
+
+bool
+FFmpegDecoder::seek_final_finished (int n, int done) const
+{
+ return n == done;
+}
+
+void
+FFmpegDecoder::seek_and_flush (ContentTime t)
+{
+ int64_t s = ((double (t) / TIME_HZ) - _pts_offset) /
+ av_q2d (_format_context->streams[_video_stream]->time_base);
+
+ if (_ffmpeg_content->audio_stream ()) {
+ s = min (
+ s, int64_t (
+ ((double (t) / TIME_HZ) - _pts_offset) /
+ av_q2d (_ffmpeg_content->audio_stream()->stream(_format_context)->time_base)
+ )
+ );
}
- /* Initial seek time in the stream's timebase */
- int64_t const initial_vt = ((initial / _ffmpeg_content->video_frame_rate()) - _video_pts_offset) / time_base;
+ /* Ridiculous empirical hack */
+ s--;
- av_seek_frame (_format_context, _video_stream, initial_vt, AVSEEK_FLAG_BACKWARD);
+ av_seek_frame (_format_context, _video_stream, s, AVSEEK_FLAG_BACKWARD);
avcodec_flush_buffers (video_codec_context());
+ if (audio_codec_context ()) {
+ avcodec_flush_buffers (audio_codec_context ());
+ }
if (_subtitle_codec_context) {
avcodec_flush_buffers (_subtitle_codec_context);
}
+}
- _just_sought = true;
- _video_position = frame;
+void
+FFmpegDecoder::seek (ContentTime time, bool accurate)
+{
+ Decoder::seek (time, accurate);
+ AudioDecoder::seek (time, accurate);
- if (frame == 0 || !accurate) {
- /* We're already there, or we're as close as we need to be */
- return;
+ /* If we are doing an accurate seek, our initial shot will be 200ms (200 being
+ a number plucked from the air) earlier than we want to end up. The loop below
+ will hopefully then step through to where we want to be.
+ */
+
+ ContentTime pre_roll = accurate ? (0.2 * TIME_HZ) : 0;
+ ContentTime initial_seek = time - pre_roll;
+ if (initial_seek < 0) {
+ initial_seek = 0;
}
- while (1) {
- int r = av_read_frame (_format_context, &_packet);
- if (r < 0) {
- return;
- }
+ /* Initial seek time in the video stream's timebase */
- if (_packet.stream_index != _video_stream) {
- av_free_packet (&_packet);
- continue;
- }
-
- int finished = 0;
- r = avcodec_decode_video2 (video_codec_context(), _frame, &finished, &_packet);
- if (r >= 0 && finished) {
- _video_position = rint (
- (av_frame_get_best_effort_timestamp (_frame) * time_base + _video_pts_offset) * _ffmpeg_content->video_frame_rate()
- );
+ seek_and_flush (initial_seek);
- if (_video_position >= (frame - 1)) {
- av_free_packet (&_packet);
- break;
- }
- }
-
- av_free_packet (&_packet);
+ if (!accurate) {
+ /* That'll do */
+ return;
+ }
+
+ int const N = minimal_run (boost::bind (&FFmpegDecoder::seek_overrun_finished, this, time, _1, _2));
+
+ seek_and_flush (initial_seek);
+ if (N > 0) {
+ minimal_run (boost::bind (&FFmpegDecoder::seek_final_finished, this, N - 1, _3));
}
}
int frame_finished;
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);
}
if (frame_finished) {
-
- if (_audio_position == 0) {
- /* Where we are in the source, in seconds */
- double const pts = av_q2d (_format_context->streams[copy_packet.stream_index]->time_base)
- * av_frame_get_best_effort_timestamp(_frame) + _audio_pts_offset;
-
- if (pts > 0) {
- /* Emit some silence */
- shared_ptr<AudioBuffers> silence (
- new AudioBuffers (
- _ffmpeg_content->audio_channels(),
- pts * _ffmpeg_content->content_audio_frame_rate()
- )
- );
-
- silence->make_silent ();
- audio (silence, _audio_position);
- }
- }
+ ContentTime const ct = (
+ av_frame_get_best_effort_timestamp (_frame) *
+ av_q2d (_ffmpeg_content->audio_stream()->stream (_format_context)->time_base)
+ + _pts_offset
+ ) * TIME_HZ;
int const data_size = av_samples_get_buffer_size (
0, audio_codec_context()->channels, _frame->nb_samples, audio_sample_format (), 1
);
-
- audio (deinterleave_audio (_frame->data, data_size), _audio_position);
+
+ audio (deinterleave_audio (_frame->data, data_size), ct);
}
copy_packet.data += decode_result;
}
if (i->second != AV_NOPTS_VALUE) {
-
- double const pts = i->second * av_q2d (_format_context->streams[_video_stream]->time_base) + _video_pts_offset;
-
- if (_just_sought) {
- /* We just did a seek, so disable any attempts to correct for where we
- are / should be.
- */
- _video_position = rint (pts * _ffmpeg_content->video_frame_rate ());
- _just_sought = false;
- }
-
- double const next = _video_position / _ffmpeg_content->video_frame_rate();
- double const one_frame = 1 / _ffmpeg_content->video_frame_rate ();
- double delta = pts - next;
-
- while (delta > one_frame) {
- /* This PTS is more than one frame forward in time of where we think we should be; emit
- a black frame.
- */
-
- /* XXX: I think this should be a copy of the last frame... */
- boost::shared_ptr<Image> black (
- new Image (
- static_cast<AVPixelFormat> (_frame->format),
- libdcp::Size (video_codec_context()->width, video_codec_context()->height),
- true
- )
- );
-
- black->make_black ();
- video (image, false, _video_position);
- delta -= one_frame;
- }
-
- if (delta > -one_frame) {
- /* This PTS is within a frame of being right; emit this (otherwise it will be dropped) */
- video (image, false, _video_position);
- }
-
+ double const pts = i->second * av_q2d (_format_context->streams[_video_stream]->time_base) + _pts_offset;
+ VideoFrame const f = rint (pts * _ffmpeg_content->video_frame_rate ());
+ video (image, false, f);
} else {
shared_ptr<const Film> film = _film.lock ();
assert (film);
}
}
-bool
-FFmpegDecoder::done () const
-{
- bool const vd = !_decode_video || (_video_position >= _ffmpeg_content->video_length());
- bool const ad = !_decode_audio || !_ffmpeg_content->audio_stream() || (_audio_position >= _ffmpeg_content->audio_length());
- return vd && ad;
-}
-
void
FFmpegDecoder::decode_subtitle_packet ()
{
/* Subtitle PTS in seconds (within the source, not taking into account any of the
source that we may have chopped off for the DCP)
*/
++<<<<<<< HEAD
+ double const packet_time = (static_cast<double> (sub.pts ) / AV_TIME_BASE) + _pts_offset;
+
++=======
+ double const packet_time = (static_cast<double> (sub.pts ) / AV_TIME_BASE) + _video_pts_offset;
+
++>>>>>>> master
/* hence start time for this sub */
- Time const from = (packet_time + (double (sub.start_display_time) / 1e3)) * TIME_HZ;
- Time const to = (packet_time + (double (sub.end_display_time) / 1e3)) * TIME_HZ;
+ ContentTime const from = (packet_time + (double (sub.start_display_time) / 1e3)) * TIME_HZ;
+ ContentTime const to = (packet_time + (double (sub.end_display_time) / 1e3)) * TIME_HZ;
AVSubtitleRect const * rect = sub.rects[0];
*/
#include <stdint.h>
+#include <algorithm>
#include "player.h"
#include "film.h"
#include "ffmpeg_decoder.h"
#include "job.h"
#include "image.h"
#include "ratio.h"
-#include "resampler.h"
#include "log.h"
#include "scaler.h"
using boost::shared_ptr;
using boost::weak_ptr;
using boost::dynamic_pointer_cast;
+using boost::optional;
class Piece
{
public:
- Piece (shared_ptr<Content> c)
- : content (c)
- , video_position (c->position ())
- , audio_position (c->position ())
- , repeat_to_do (0)
- , repeat_done (0)
- {}
-
- Piece (shared_ptr<Content> c, shared_ptr<Decoder> d)
+ Piece (shared_ptr<Content> c, shared_ptr<Decoder> d, FrameRateChange f)
: content (c)
, decoder (d)
- , video_position (c->position ())
- , audio_position (c->position ())
+ , frc (f)
{}
- /** Set this piece to repeat a video frame a given number of times */
- void set_repeat (IncomingVideo video, int num)
- {
- repeat_video = video;
- repeat_to_do = num;
- repeat_done = 0;
- }
-
- void reset_repeat ()
- {
- repeat_video.image.reset ();
- repeat_to_do = 0;
- repeat_done = 0;
- }
-
- bool repeating () const
- {
- return repeat_done != repeat_to_do;
- }
-
- void repeat (Player* player)
- {
- player->process_video (
- repeat_video.weak_piece,
- repeat_video.image,
- repeat_video.eyes,
- repeat_done > 0,
- repeat_video.frame,
- (repeat_done + 1) * (TIME_HZ / player->_film->video_frame_rate ())
- );
-
- ++repeat_done;
- }
-
shared_ptr<Content> content;
shared_ptr<Decoder> decoder;
- /** Time of the last video we emitted relative to the start of the DCP */
- Time video_position;
- /** Time of the last audio we emitted relative to the start of the DCP */
- Time audio_position;
-
- IncomingVideo repeat_video;
- int repeat_to_do;
- int repeat_done;
+ FrameRateChange frc;
};
Player::Player (shared_ptr<const Film> f, shared_ptr<const Playlist> p)
, _audio_position (0)
, _audio_merger (f->audio_channels(), bind (&Film::time_to_audio_frames, f.get(), _1), bind (&Film::audio_frames_to_time, f.get(), _1))
, _last_emit_was_black (false)
+ , _just_did_inaccurate_seek (false)
+ , _approximate_size (false)
{
_playlist_changed_connection = _playlist->Changed.connect (bind (&Player::playlist_changed, this));
_playlist_content_changed_connection = _playlist->ContentChanged.connect (bind (&Player::content_changed, this, _1, _2, _3));
setup_pieces ();
}
- Time earliest_t = TIME_MAX;
- shared_ptr<Piece> earliest;
- enum {
- VIDEO,
- AUDIO
- } type = VIDEO;
+ /* Interrogate all our pieces to find the one with the earliest decoded data */
+
+ shared_ptr<Piece> earliest_piece;
+ shared_ptr<Decoded> earliest_decoded;
+ DCPTime earliest_time = TIME_MAX;
+ DCPTime earliest_audio = TIME_MAX;
for (list<shared_ptr<Piece> >::iterator i = _pieces.begin(); i != _pieces.end(); ++i) {
- if ((*i)->decoder->done ()) {
- continue;
- }
- shared_ptr<VideoDecoder> vd = dynamic_pointer_cast<VideoDecoder> ((*i)->decoder);
- shared_ptr<AudioDecoder> ad = dynamic_pointer_cast<AudioDecoder> ((*i)->decoder);
+ DCPTime const offset = (*i)->content->position() - (*i)->content->trim_start();
+
+ bool done = false;
+ shared_ptr<Decoded> dec;
+ while (!done) {
+ dec = (*i)->decoder->peek ();
+ if (!dec) {
+ /* Decoder has nothing else to give us */
+ break;
+ }
- if (_video && vd) {
- if ((*i)->video_position < earliest_t) {
- earliest_t = (*i)->video_position;
- earliest = *i;
- type = VIDEO;
+ dec->set_dcp_times (_film->video_frame_rate(), _film->audio_frame_rate(), (*i)->frc, offset);
+ DCPTime const t = dec->dcp_time - offset;
+ if (t >= ((*i)->content->full_length() - (*i)->content->trim_end ())) {
+ /* In the end-trimmed part; decoder has nothing else to give us */
+ dec.reset ();
+ done = true;
+ } else if (t >= (*i)->content->trim_start ()) {
+ /* Within the un-trimmed part; everything's ok */
+ done = true;
+ } else {
+ /* Within the start-trimmed part; get something else */
+ (*i)->decoder->consume ();
}
}
- if (_audio && ad && ad->has_audio ()) {
- if ((*i)->audio_position < earliest_t) {
- earliest_t = (*i)->audio_position;
- earliest = *i;
- type = AUDIO;
- }
+ if (!dec) {
+ continue;
+ }
+
+ if (dec->dcp_time < earliest_time) {
+ earliest_piece = *i;
+ earliest_decoded = dec;
+ earliest_time = dec->dcp_time;
}
- }
- if (!earliest) {
+ if (dynamic_pointer_cast<DecodedAudio> (dec) && dec->dcp_time < earliest_audio) {
+ earliest_audio = dec->dcp_time;
+ }
+ }
+
+ if (!earliest_piece) {
flush ();
return true;
}
- switch (type) {
- case VIDEO:
- if (earliest_t > _video_position) {
- emit_black ();
- } else {
- if (earliest->repeating ()) {
- earliest->repeat (this);
+ if (earliest_audio != TIME_MAX) {
+ TimedAudioBuffers<DCPTime> tb = _audio_merger.pull (max (int64_t (0), earliest_audio));
+ Audio (tb.audio, tb.time);
+ /* This assumes that the audio_frames_to_time conversion is exact
+ so that there are no accumulated errors caused by rounding.
+ */
+ _audio_position += _film->audio_frames_to_time (tb.audio->frames ());
+ }
+
+ /* Emit the earliest thing */
+
+ shared_ptr<DecodedVideo> dv = dynamic_pointer_cast<DecodedVideo> (earliest_decoded);
+ shared_ptr<DecodedAudio> da = dynamic_pointer_cast<DecodedAudio> (earliest_decoded);
+ shared_ptr<DecodedSubtitle> ds = dynamic_pointer_cast<DecodedSubtitle> (earliest_decoded);
+
+ /* Will be set to false if we shouldn't consume the peeked DecodedThing */
+ bool consume = true;
+
+ if (dv && _video) {
+
+ if (_just_did_inaccurate_seek) {
+
+ /* Just emit; no subtlety */
+ emit_video (earliest_piece, dv);
+ step_video_position (dv);
+
+ } else if (dv->dcp_time > _video_position) {
+
+ /* Too far ahead */
+
+ list<shared_ptr<Piece> >::iterator i = _pieces.begin();
+ while (i != _pieces.end() && ((*i)->content->position() >= _video_position || _video_position >= (*i)->content->end())) {
+ ++i;
+ }
+
+ if (i == _pieces.end() || !_last_incoming_video.video || !_have_valid_pieces) {
+ /* We're outside all video content */
+ emit_black ();
+ _statistics.video.black++;
} else {
- earliest->decoder->pass ();
+ /* We're inside some video; repeat the frame */
+ _last_incoming_video.video->dcp_time = _video_position;
+ emit_video (_last_incoming_video.weak_piece, _last_incoming_video.video);
+ step_video_position (_last_incoming_video.video);
+ _statistics.video.repeat++;
}
- }
- break;
- case AUDIO:
- if (earliest_t > _audio_position) {
- emit_silence (_film->time_to_audio_frames (earliest_t - _audio_position));
+ consume = false;
+
+ } else if (dv->dcp_time == _video_position) {
+ /* We're ok */
+ emit_video (earliest_piece, dv);
+ step_video_position (dv);
+ _statistics.video.good++;
} else {
- earliest->decoder->pass ();
-
- if (earliest->decoder->done()) {
- shared_ptr<AudioContent> ac = dynamic_pointer_cast<AudioContent> (earliest->content);
- assert (ac);
- shared_ptr<Resampler> re = resampler (ac, false);
- if (re) {
- shared_ptr<const AudioBuffers> b = re->flush ();
- if (b->frames ()) {
- process_audio (earliest, b, ac->audio_length ());
- }
- }
- }
+ /* Too far behind: skip */
+ _statistics.video.skip++;
}
- break;
- }
- if (_audio) {
- boost::optional<Time> audio_done_up_to;
- for (list<shared_ptr<Piece> >::iterator i = _pieces.begin(); i != _pieces.end(); ++i) {
- if ((*i)->decoder->done ()) {
- continue;
- }
+ _just_did_inaccurate_seek = false;
- shared_ptr<AudioDecoder> ad = dynamic_pointer_cast<AudioDecoder> ((*i)->decoder);
- if (ad && ad->has_audio ()) {
- audio_done_up_to = min (audio_done_up_to.get_value_or (TIME_MAX), (*i)->audio_position);
- }
- }
+ } else if (da && _audio) {
- if (audio_done_up_to) {
- TimedAudioBuffers<Time> tb = _audio_merger.pull (audio_done_up_to.get ());
- Audio (tb.audio, tb.time);
- _audio_position += _film->audio_frames_to_time (tb.audio->frames ());
+ if (da->dcp_time > _audio_position) {
+ /* Too far ahead */
+ emit_silence (da->dcp_time - _audio_position);
+ consume = false;
+ _statistics.audio.silence += (da->dcp_time - _audio_position);
+ } else if (da->dcp_time == _audio_position) {
+ /* We're ok */
+ emit_audio (earliest_piece, da);
+ _statistics.audio.good += da->data->frames();
+ } else {
+ /* Too far behind: skip */
+ _statistics.audio.skip += da->data->frames();
}
- }
+ } else if (ds && _video) {
+ _in_subtitle.piece = earliest_piece;
+ _in_subtitle.subtitle = ds;
+ update_subtitle ();
+ }
+
+ if (consume) {
+ earliest_piece->decoder->consume ();
+ }
+
return false;
}
-/** @param extra Amount of extra time to add to the content frame's time (for repeat) */
void
-Player::process_video (weak_ptr<Piece> weak_piece, shared_ptr<const Image> image, Eyes eyes, bool same, VideoContent::Frame frame, Time extra)
+Player::emit_video (weak_ptr<Piece> weak_piece, shared_ptr<DecodedVideo> video)
{
/* Keep a note of what came in so that we can repeat it if required */
_last_incoming_video.weak_piece = weak_piece;
- _last_incoming_video.image = image;
- _last_incoming_video.eyes = eyes;
- _last_incoming_video.same = same;
- _last_incoming_video.frame = frame;
- _last_incoming_video.extra = extra;
+ _last_incoming_video.video = video;
shared_ptr<Piece> piece = weak_piece.lock ();
if (!piece) {
shared_ptr<VideoContent> content = dynamic_pointer_cast<VideoContent> (piece->content);
assert (content);
- FrameRateConversion frc (content->video_frame_rate(), _film->video_frame_rate());
- if (frc.skip && (frame % 2) == 1) {
- return;
- }
-
- Time const relative_time = (frame * frc.factor() * TIME_HZ / _film->video_frame_rate());
- if (content->trimmed (relative_time)) {
- return;
- }
+ FrameRateChange frc (content->video_frame_rate(), _film->video_frame_rate());
- Time const time = content->position() + relative_time + extra - content->trim_start ();
float const ratio = content->ratio() ? content->ratio()->ratio() : content->video_size_after_crop().ratio();
- libdcp::Size const image_size = fit_ratio_within (ratio, _video_container_size);
+ libdcp::Size image_size = fit_ratio_within (ratio, _video_container_size);
+ if (_approximate_size) {
+ image_size.width &= ~3;
+ image_size.height &= ~3;
+ }
shared_ptr<PlayerImage> pi (
new PlayerImage (
- image,
+ video->image,
content->crop(),
image_size,
_video_container_size,
)
);
- if (_film->with_subtitles () && _out_subtitle.image && time >= _out_subtitle.from && time <= _out_subtitle.to) {
+ if (
+ _film->with_subtitles () &&
+ _out_subtitle.image &&
+ video->dcp_time >= _out_subtitle.from && video->dcp_time <= _out_subtitle.to
+ ) {
Position<int> const container_offset (
(_video_container_size.width - image_size.width) / 2,
- (_video_container_size.height - image_size.width) / 2
+ (_video_container_size.height - image_size.height) / 2
);
pi->set_subtitle (_out_subtitle.image, _out_subtitle.position + container_offset);
}
+
#ifdef DCPOMATIC_DEBUG
_last_video = piece->content;
#endif
- Video (pi, eyes, content->colour_conversion(), same, time);
-
+ Video (pi, video->eyes, content->colour_conversion(), video->same, video->dcp_time);
+
_last_emit_was_black = false;
- _video_position = piece->video_position = (time + TIME_HZ / _film->video_frame_rate());
+}
- if (frc.repeat > 1 && !piece->repeating ()) {
- piece->set_repeat (_last_incoming_video, frc.repeat - 1);
+void
+Player::step_video_position (shared_ptr<DecodedVideo> video)
+{
+ /* This is a bit of a hack; don't update _video_position if EYES_RIGHT is on its way */
+ if (video->eyes != EYES_LEFT) {
+ /* This assumes that the video_frames_to_time conversion is exact
+ so that there are no accumulated errors caused by rounding.
+ */
+ _video_position += _film->video_frames_to_time (1);
}
}
void
-Player::process_audio (weak_ptr<Piece> weak_piece, shared_ptr<const AudioBuffers> audio, AudioContent::Frame frame)
+Player::emit_audio (weak_ptr<Piece> weak_piece, shared_ptr<DecodedAudio> audio)
{
shared_ptr<Piece> piece = weak_piece.lock ();
if (!piece) {
/* Gain */
if (content->audio_gain() != 0) {
- shared_ptr<AudioBuffers> gain (new AudioBuffers (audio));
+ shared_ptr<AudioBuffers> gain (new AudioBuffers (audio->data));
gain->apply_gain (content->audio_gain ());
- audio = gain;
+ audio->data = gain;
}
- /* Resample */
- if (content->content_audio_frame_rate() != content->output_audio_frame_rate()) {
- shared_ptr<Resampler> r = resampler (content, true);
- pair<shared_ptr<const AudioBuffers>, AudioContent::Frame> ro = r->run (audio, frame);
- audio = ro.first;
- frame = ro.second;
- }
-
- Time const relative_time = _film->audio_frames_to_time (frame);
-
- if (content->trimmed (relative_time)) {
- return;
- }
-
- Time time = content->position() + (content->audio_delay() * TIME_HZ / 1000) + relative_time - content->trim_start ();
-
/* Remap channels */
- shared_ptr<AudioBuffers> dcp_mapped (new AudioBuffers (_film->audio_channels(), audio->frames()));
+ shared_ptr<AudioBuffers> dcp_mapped (new AudioBuffers (_film->audio_channels(), audio->data->frames()));
dcp_mapped->make_silent ();
-
AudioMapping map = content->audio_mapping ();
for (int i = 0; i < map.content_channels(); ++i) {
for (int j = 0; j < _film->audio_channels(); ++j) {
if (map.get (i, static_cast<libdcp::Channel> (j)) > 0) {
dcp_mapped->accumulate_channel (
- audio.get(),
+ audio->data.get(),
i,
static_cast<libdcp::Channel> (j),
map.get (i, static_cast<libdcp::Channel> (j))
}
}
- audio = dcp_mapped;
+ audio->data = dcp_mapped;
- /* We must cut off anything that comes before the start of all time */
- if (time < 0) {
- int const frames = - time * _film->audio_frame_rate() / TIME_HZ;
- if (frames >= audio->frames ()) {
+ /* Delay */
+ audio->dcp_time += content->audio_delay() * TIME_HZ / 1000;
+ if (audio->dcp_time < 0) {
+ int const frames = - audio->dcp_time * _film->audio_frame_rate() / TIME_HZ;
+ if (frames >= audio->data->frames ()) {
return;
}
- shared_ptr<AudioBuffers> trimmed (new AudioBuffers (audio->channels(), audio->frames() - frames));
- trimmed->copy_from (audio.get(), audio->frames() - frames, frames, 0);
+ shared_ptr<AudioBuffers> trimmed (new AudioBuffers (audio->data->channels(), audio->data->frames() - frames));
+ trimmed->copy_from (audio->data.get(), audio->data->frames() - frames, frames, 0);
- audio = trimmed;
- time = 0;
+ audio->data = trimmed;
+ audio->dcp_time = 0;
}
- _audio_merger.push (audio, time);
- piece->audio_position += _film->audio_frames_to_time (audio->frames ());
+ _audio_merger.push (audio->data, audio->dcp_time);
}
void
Player::flush ()
{
- TimedAudioBuffers<Time> tb = _audio_merger.flush ();
+ TimedAudioBuffers<DCPTime> tb = _audio_merger.flush ();
if (_audio && tb.audio) {
Audio (tb.audio, tb.time);
_audio_position += _film->audio_frames_to_time (tb.audio->frames ());
}
while (_audio && _audio_position < _video_position) {
- emit_silence (_film->time_to_audio_frames (_video_position - _audio_position));
+ emit_silence (_video_position - _audio_position);
}
}
* @return true on error
*/
void
-Player::seek (Time t, bool accurate)
+Player::seek (DCPTime t, bool accurate)
{
if (!_have_valid_pieces) {
setup_pieces ();
}
for (list<shared_ptr<Piece> >::iterator i = _pieces.begin(); i != _pieces.end(); ++i) {
- shared_ptr<VideoContent> vc = dynamic_pointer_cast<VideoContent> ((*i)->content);
- if (!vc) {
- continue;
- }
-
/* s is the offset of t from the start position of this content */
- Time s = t - vc->position ();
- s = max (static_cast<Time> (0), s);
- s = min (vc->length_after_trim(), s);
+ DCPTime s = t - (*i)->content->position ();
+ s = max (static_cast<DCPTime> (0), s);
+ s = min ((*i)->content->length_after_trim(), s);
- /* Hence set the piece positions to the `global' time */
- (*i)->video_position = (*i)->audio_position = vc->position() + s;
+ /* Convert this to the content time */
+ ContentTime ct = (s + (*i)->content->trim_start()) * (*i)->frc.speed_up;
/* And seek the decoder */
- dynamic_pointer_cast<VideoDecoder>((*i)->decoder)->seek (
- vc->time_to_content_video_frames (s + vc->trim_start ()), accurate
- );
-
- (*i)->reset_repeat ();
+ (*i)->decoder->seek (ct, accurate);
}
- _video_position = _audio_position = t;
+ _video_position = time_round_up (t, TIME_HZ / _film->video_frame_rate());
+ _audio_position = time_round_up (t, TIME_HZ / _film->audio_frame_rate());
- /* XXX: don't seek audio because we don't need to... */
+ _audio_merger.clear (_audio_position);
+
+ if (!accurate) {
+ /* We just did an inaccurate seek, so it's likely that the next thing seen
+ out of pass() will be a fair distance from _{video,audio}_position. Setting
+ this flag stops pass() from trying to fix that: we assume that if it
+ was an inaccurate seek then the caller does not care too much about
+ inserting black/silence to keep the time tidy.
+ */
+ _just_did_inaccurate_seek = true;
+ }
}
void
Player::setup_pieces ()
{
list<shared_ptr<Piece> > old_pieces = _pieces;
-
_pieces.clear ();
ContentList content = _playlist->content ();
- sort (content.begin(), content.end(), ContentSorter ());
for (ContentList::iterator i = content.begin(); i != content.end(); ++i) {
- shared_ptr<Piece> piece (new Piece (*i));
-
- /* XXX: into content? */
+ shared_ptr<Decoder> decoder;
+ optional<FrameRateChange> frc;
shared_ptr<const FFmpegContent> fc = dynamic_pointer_cast<const FFmpegContent> (*i);
if (fc) {
- shared_ptr<FFmpegDecoder> fd (new FFmpegDecoder (_film, fc, _video, _audio));
-
- fd->Video.connect (bind (&Player::process_video, this, weak_ptr<Piece> (piece), _1, _2, _3, _4, 0));
- fd->Audio.connect (bind (&Player::process_audio, this, weak_ptr<Piece> (piece), _1, _2));
- fd->Subtitle.connect (bind (&Player::process_subtitle, this, weak_ptr<Piece> (piece), _1, _2, _3, _4));
-
- fd->seek (fc->time_to_content_video_frames (fc->trim_start ()), true);
- piece->decoder = fd;
+ decoder.reset (new FFmpegDecoder (_film, fc, _video, _audio));
+ frc = FrameRateChange (fc->video_frame_rate(), _film->video_frame_rate());
}
shared_ptr<const ImageContent> ic = dynamic_pointer_cast<const ImageContent> (*i);
if (ic) {
- bool reusing = false;
-
/* See if we can re-use an old ImageDecoder */
for (list<shared_ptr<Piece> >::const_iterator j = old_pieces.begin(); j != old_pieces.end(); ++j) {
shared_ptr<ImageDecoder> imd = dynamic_pointer_cast<ImageDecoder> ((*j)->decoder);
if (imd && imd->content() == ic) {
- piece = *j;
- reusing = true;
+ decoder = imd;
}
}
- if (!reusing) {
- shared_ptr<ImageDecoder> id (new ImageDecoder (_film, ic));
- id->Video.connect (bind (&Player::process_video, this, weak_ptr<Piece> (piece), _1, _2, _3, _4, 0));
- piece->decoder = id;
+ if (!decoder) {
+ decoder.reset (new ImageDecoder (_film, ic));
}
+
+ frc = FrameRateChange (ic->video_frame_rate(), _film->video_frame_rate());
}
shared_ptr<const SndfileContent> sc = dynamic_pointer_cast<const SndfileContent> (*i);
if (sc) {
- shared_ptr<AudioDecoder> sd (new SndfileDecoder (_film, sc));
- sd->Audio.connect (bind (&Player::process_audio, this, weak_ptr<Piece> (piece), _1, _2));
+ decoder.reset (new SndfileDecoder (_film, sc));
+
+ /* Working out the frc for this content is a bit tricky: what if it overlaps
+ two pieces of video content with different frame rates? For now, use
+ the one with the best overlap.
+ */
+
+ DCPTime best_overlap_t = 0;
+ shared_ptr<VideoContent> best_overlap;
+ for (ContentList::iterator j = content.begin(); j != content.end(); ++j) {
+ shared_ptr<VideoContent> vc = dynamic_pointer_cast<VideoContent> (*j);
+ if (!vc) {
+ continue;
+ }
+
+ DCPTime const overlap = max (vc->position(), sc->position()) - min (vc->end(), sc->end());
+ if (overlap > best_overlap_t) {
+ best_overlap = vc;
+ best_overlap_t = overlap;
+ }
+ }
- piece->decoder = sd;
+ if (best_overlap) {
+ frc = FrameRateChange (best_overlap->video_frame_rate(), _film->video_frame_rate ());
+ } else {
+ /* No video overlap; e.g. if the DCP is just audio */
+ frc = FrameRateChange (_film->video_frame_rate(), _film->video_frame_rate ());
+ }
}
- _pieces.push_back (piece);
+ ContentTime st = (*i)->trim_start() * frc->speed_up;
+ decoder->seek (st, true);
+
+ _pieces.push_back (shared_ptr<Piece> (new Piece (*i, decoder, frc.get ())));
}
_have_valid_pieces = true;
+
+ /* The Piece for the _last_incoming_video will no longer be valid */
+ _last_incoming_video.video.reset ();
+
+ _video_position = _audio_position = 0;
}
void
);
}
-shared_ptr<Resampler>
-Player::resampler (shared_ptr<AudioContent> c, bool create)
-{
- map<shared_ptr<AudioContent>, shared_ptr<Resampler> >::iterator i = _resamplers.find (c);
- if (i != _resamplers.end ()) {
- return i->second;
- }
-
- if (!create) {
- return shared_ptr<Resampler> ();
- }
-
- _film->log()->log (
- String::compose (
- "Creating new resampler for %1 to %2 with %3 channels", c->content_audio_frame_rate(), c->output_audio_frame_rate(), c->audio_channels()
- )
- );
-
- shared_ptr<Resampler> r (new Resampler (c->content_audio_frame_rate(), c->output_audio_frame_rate(), c->audio_channels()));
- _resamplers[c] = r;
- return r;
-}
-
void
Player::emit_black ()
{
}
void
-Player::emit_silence (OutputAudioFrame most)
+Player::emit_silence (DCPTime most)
{
if (most == 0) {
return;
}
- OutputAudioFrame N = min (most, _film->audio_frame_rate() / 2);
- shared_ptr<AudioBuffers> silence (new AudioBuffers (_film->audio_channels(), N));
+ DCPTime t = min (most, TIME_HZ / 2);
+ shared_ptr<AudioBuffers> silence (new AudioBuffers (_film->audio_channels(), t * _film->audio_frame_rate() / TIME_HZ));
silence->make_silent ();
Audio (silence, _audio_position);
- _audio_position += _film->audio_frames_to_time (N);
+
+ _audio_position += t;
}
void
}
}
-void
-Player::process_subtitle (weak_ptr<Piece> weak_piece, shared_ptr<Image> image, dcpomatic::Rect<double> rect, Time from, Time to)
-{
- _in_subtitle.piece = weak_piece;
- _in_subtitle.image = image;
- _in_subtitle.rect = rect;
- _in_subtitle.from = from;
- _in_subtitle.to = to;
-
- update_subtitle ();
-}
-
void
Player::update_subtitle ()
{
return;
}
- if (!_in_subtitle.image) {
+ if (!_in_subtitle.subtitle->image) {
_out_subtitle.image.reset ();
return;
}
shared_ptr<SubtitleContent> sc = dynamic_pointer_cast<SubtitleContent> (piece->content);
assert (sc);
- dcpomatic::Rect<double> in_rect = _in_subtitle.rect;
+ dcpomatic::Rect<double> in_rect = _in_subtitle.subtitle->rect;
libdcp::Size scaled_size;
in_rect.y += sc->subtitle_offset ();
_out_subtitle.position.x = rint (_video_container_size.width * (in_rect.x + (in_rect.width * (1 - sc->subtitle_scale ()) / 2)));
_out_subtitle.position.y = rint (_video_container_size.height * (in_rect.y + (in_rect.height * (1 - sc->subtitle_scale ()) / 2)));
-
- _out_subtitle.image = _in_subtitle.image->scale (
+
+ _out_subtitle.image = _in_subtitle.subtitle->image->scale (
scaled_size,
Scaler::from_id ("bicubic"),
- _in_subtitle.image->pixel_format (),
+ PIX_FMT_RGBA,
true
);
++<<<<<<< HEAD
+ _out_subtitle.from = _in_subtitle.subtitle->dcp_time;
+ _out_subtitle.to = _in_subtitle.subtitle->dcp_time_to;
++=======
+ /* XXX: hack */
+ Time from = _in_subtitle.from;
+ Time to = _in_subtitle.to;
+ shared_ptr<VideoContent> vc = dynamic_pointer_cast<VideoContent> (piece->content);
+ if (vc) {
+ from = rint (from * vc->video_frame_rate() / _film->video_frame_rate());
+ to = rint (to * vc->video_frame_rate() / _film->video_frame_rate());
+ }
+
+ _out_subtitle.from = from * piece->content->position ();
+ _out_subtitle.to = to + piece->content->position ();
++>>>>>>> master
}
/** Re-emit the last frame that was emitted, using current settings for crop, ratio, scaler and subtitles.
bool
Player::repeat_last_video ()
{
- if (!_last_incoming_video.image || !_have_valid_pieces) {
+ if (!_last_incoming_video.video || !_have_valid_pieces) {
return false;
}
- process_video (
+ emit_video (
_last_incoming_video.weak_piece,
- _last_incoming_video.image,
- _last_incoming_video.eyes,
- _last_incoming_video.same,
- _last_incoming_video.frame,
- _last_incoming_video.extra
+ _last_incoming_video.video
);
return true;
}
+void
+Player::set_approximate_size ()
+{
+ _approximate_size = true;
+}
+
+
PlayerImage::PlayerImage (
shared_ptr<const Image> in,
Crop crop,
}
shared_ptr<Image>
-PlayerImage::image ()
+PlayerImage::image (AVPixelFormat format, bool aligned)
{
- shared_ptr<Image> out = _in->crop_scale_window (_crop, _inter_size, _out_size, _scaler, PIX_FMT_RGB24, false);
-
+ shared_ptr<Image> out = _in->crop_scale_window (_crop, _inter_size, _out_size, _scaler, format, aligned);
+
Position<int> const container_offset ((_out_size.width - _inter_size.width) / 2, (_out_size.height - _inter_size.width) / 2);
if (_subtitle_image) {
return out;
}
+
+void
+PlayerStatistics::dump (shared_ptr<Log> log) const
+{
+ log->log (String::compose ("Video: %1 good %2 skipped %3 black %4 repeat", video.good, video.skip, video.black, video.repeat));
+ log->log (String::compose ("Audio: %1 good %2 skipped %3 silence", audio.good, audio.skip, audio.silence));
+}
+
+PlayerStatistics const &
+Player::statistics () const
+{
+ return _statistics;
+}
projects / dcpomatic.git / commitdiff