FFmpegDecoder::flush ()
{
/* Get any remaining frames */
-
+
_packet.data = 0;
_packet.size = 0;
-
+
/* XXX: should we reset _packet.data and size after each *_decode_* call? */
-
+
while (decode_video_packet ()) {}
-
+
decode_audio_packet ();
AudioDecoder::flush ();
}
av_strerror (r, buf, sizeof(buf));
LOG_ERROR (N_("error on av_read_frame (%1) (%2)"), buf, r);
}
-
+
flush ();
return true;
}
}
}
break;
-
+
case AV_SAMPLE_FMT_S16:
{
int16_t* p = reinterpret_cast<int16_t *> (data[0]);
}
}
break;
-
+
case AV_SAMPLE_FMT_S32:
{
int32_t* p = reinterpret_cast<int32_t *> (data[0]);
}
}
break;
-
+
case AV_SAMPLE_FMT_FLTP:
{
float** p = reinterpret_cast<float**> (data);
/* XXX: it seems debatable whether PTS should be used here...
http://www.mjbshaw.com/2012/04/seeking-in-ffmpeg-know-your-timestamp.html
*/
-
+
ContentTime u = time - _pts_offset;
if (u < ContentTime ()) {
u = ContentTime ();
avcodec_flush_buffers (video_codec_context());
/* XXX: should be flushing audio buffers? */
-
+
if (subtitle_codec_context ()) {
avcodec_flush_buffers (subtitle_codec_context ());
}
/* Audio packets can contain multiple frames, so we may have to call avcodec_decode_audio4
several times.
*/
-
+
AVPacket copy_packet = _packet;
/* XXX: inefficient */
/* The packet's stream may not be an audio one; just ignore it in this method if so */
return;
}
-
+
while (copy_packet.size > 0) {
int frame_finished;
av_frame_get_best_effort_timestamp (_frame) *
av_q2d ((*stream)->stream (_format_context)->time_base))
+ _pts_offset;
-
+
int const data_size = av_samples_get_buffer_size (
0, (*stream)->stream(_format_context)->codec->channels, _frame->nb_samples, audio_sample_format (*stream), 1
);
audio (*stream, deinterleave_audio (*stream, _frame->data, data_size), ct);
}
-
+
copy_packet.data += decode_result;
copy_packet.size -= decode_result;
}
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 (dcp::Size (_frame->width, _frame->height), (AVPixelFormat) _frame->format)) {
++i;
for (list<pair<shared_ptr<Image>, int64_t> >::iterator i = images.begin(); i != images.end(); ++i) {
shared_ptr<Image> image = i->first;
-
+
if (i->second != AV_NOPTS_VALUE) {
double const pts = i->second * av_q2d (_format_context->streams[_video_stream]->time_base) + _pts_offset.seconds ();
video (
return true;
}
-
+
void
FFmpegDecoder::decode_subtitle_packet ()
{
if (avcodec_decode_subtitle2 (subtitle_codec_context(), &sub, &got_subtitle, &_packet) < 0 || !got_subtitle) {
return;
}
-
+
if (sub.num_rects <= 0) {
/* Sometimes we get an empty AVSubtitle, which is used by some codecs to
indicate that the previous subtitle should stop. We can ignore it here.
/* We have to look up the `to' time in the stream's records */
period.to = ffmpeg_content()->subtitle_stream()->find_subtitle_to (sub_period.from);
}
-
+
AVSubtitleRect const * rect = sub.rects[0];
switch (rect->type) {
cout << "XXX: SUBTITLE_ASS " << rect->ass << "\n";
break;
}
-
+
avsubtitle_free (&sub);
}
G, third B, fourth A.
*/
shared_ptr<Image> image (new Image (PIX_FMT_RGBA, dcp::Size (rect->w, rect->h), true));
-
+
/* Start of the first line in the subtitle */
uint8_t* sub_p = rect->pict.data[0];
/* sub_p looks up into a BGRA palette which is here
uint32_t const * palette = (uint32_t *) rect->pict.data[1];
/* Start of the output data */
uint32_t* out_p = (uint32_t *) image->data()[0];
-
+
for (int y = 0; y < rect->h; ++y) {
uint8_t* sub_line_p = sub_p;
uint32_t* out_line_p = out_p;
sub_p += rect->pict.linesize[0];
out_p += image->stride()[0] / sizeof (uint32_t);
}
-
+
dcp::Size const vs = _ffmpeg_content->video_size ();
dcpomatic::Rect<double> const scaled_rect (
static_cast<double> (rect->x) / vs.width,
static_cast<double> (rect->w) / vs.width,
static_cast<double> (rect->h) / vs.height
);
-
+
image_subtitle (period, image, scaled_rect);
}
projects / dcpomatic.git / blobdiff