#include "ffmpeg_examiner.h"
#include "ffmpeg_content.h"
+#include "i18n.h"
+
using std::string;
using std::cout;
+using std::max;
using std::stringstream;
using boost::shared_ptr;
using boost::optional;
_audio_streams.push_back (
shared_ptr<FFmpegAudioStream> (
- new FFmpegAudioStream (stream_name (s), i, s->codec->sample_rate, s->codec->channels)
+ new FFmpegAudioStream (audio_stream_name (s), s->id, s->codec->sample_rate, s->codec->channels)
)
);
} else if (s->codec->codec_type == AVMEDIA_TYPE_SUBTITLE) {
- _subtitle_streams.push_back (shared_ptr<FFmpegSubtitleStream> (new FFmpegSubtitleStream (stream_name (s), i)));
+ _subtitle_streams.push_back (shared_ptr<FFmpegSubtitleStream> (new FFmpegSubtitleStream (subtitle_stream_name (s), s->id)));
}
}
}
int frame_finished;
- avcodec_get_frame_defaults (_frame);
-
- cout << "got packet " << _packet.stream_index << "\n";
AVCodecContext* context = _format_context->streams[_packet.stream_index]->codec;
if (_packet.stream_index == _video_stream && !_first_video) {
if (avcodec_decode_video2 (context, _frame, &frame_finished, &_packet) >= 0 && frame_finished) {
- _first_video = frame_time (_video_stream);
+ _first_video = frame_time (_format_context->streams[_video_stream]);
}
} else {
for (size_t i = 0; i < _audio_streams.size(); ++i) {
- if (_packet.stream_index == _audio_streams[i]->id && !_audio_streams[i]->start) {
+ if (_audio_streams[i]->uses_index (_format_context, _packet.stream_index) && !_audio_streams[i]->first_audio) {
if (avcodec_decode_audio4 (context, _frame, &frame_finished, &_packet) >= 0 && frame_finished) {
- _audio_streams[i]->start = frame_time (_audio_streams[i]->id);
+ _audio_streams[i]->first_audio = frame_time (_audio_streams[i]->stream (_format_context));
}
}
}
bool have_all_audio = true;
size_t i = 0;
while (i < _audio_streams.size() && have_all_audio) {
- have_all_audio = _audio_streams[i]->start;
+ have_all_audio = _audio_streams[i]->first_audio;
++i;
}
+ av_free_packet (&_packet);
+
if (_first_video && have_all_audio) {
break;
}
-
- av_free_packet (&_packet);
}
}
-optional<Time>
-FFmpegExaminer::frame_time (int stream) const
+optional<ContentTime>
+FFmpegExaminer::frame_time (AVStream* s) const
{
- optional<Time> t;
+ optional<ContentTime> t;
int64_t const bet = av_frame_get_best_effort_timestamp (_frame);
if (bet != AV_NOPTS_VALUE) {
- t = bet * av_q2d (_format_context->streams[stream]->time_base) * TIME_HZ;
+ t = ContentTime::from_seconds (bet * av_q2d (s->time_base));
}
return t;
float
FFmpegExaminer::video_frame_rate () const
{
- AVStream* s = _format_context->streams[_video_stream];
-
- if (s->avg_frame_rate.num && s->avg_frame_rate.den) {
- return av_q2d (s->avg_frame_rate);
- }
-
- return av_q2d (s->r_frame_rate);
+ /* This use of r_frame_rate is debateable; there's a few different
+ * frame rates in the format context, but this one seems to be the most
+ * reliable.
+ */
+ return av_q2d (av_stream_get_r_frame_rate (_format_context->streams[_video_stream]));
}
-libdcp::Size
+dcp::Size
FFmpegExaminer::video_size () const
{
- return libdcp::Size (video_codec_context()->width, video_codec_context()->height);
+ return dcp::Size (video_codec_context()->width, video_codec_context()->height);
}
-/** @return Length (in video frames) according to our content's header */
-VideoContent::Frame
+/** @return Length according to our content's header */
+ContentTime
FFmpegExaminer::video_length () const
{
- return (double (_format_context->duration) / AV_TIME_BASE) * video_frame_rate();
+ ContentTime const length = ContentTime::from_seconds (double (_format_context->duration) / AV_TIME_BASE);
+ return ContentTime (max (int64_t (1), length.get ()));
+}
+
+string
+FFmpegExaminer::audio_stream_name (AVStream* s) const
+{
+ stringstream n;
+
+ n << stream_name (s);
+
+ if (!n.str().empty()) {
+ n << "; ";
+ }
+
+ n << s->codec->channels << " channels";
+
+ return n.str ();
+}
+
+string
+FFmpegExaminer::subtitle_stream_name (AVStream* s) const
+{
+ stringstream n;
+
+ n << stream_name (s);
+
+ if (n.str().empty()) {
+ n << _("unknown");
+ }
+
+ return n.str ();
}
string
}
}
- if (n.str().empty()) {
- n << "unknown";
- }
-
return n.str ();
}