/*
- Copyright (C) 2013-2014 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2013-2015 Carl Hetherington <cth@carlh.net>
- This program is free software; you can redistribute it and/or modify
+ This file is part of DCP-o-matic.
+
+ DCP-o-matic is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
- This program is distributed in the hope that it will be useful,
+ DCP-o-matic is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
*/
extern "C" {
#include <libavcodec/avcodec.h>
#include <libavformat/avformat.h>
+#include <libavutil/pixfmt.h>
+#include <libavutil/pixdesc.h>
+#include <libavutil/eval.h>
+#include <libavutil/display.h>
}
#include "ffmpeg_examiner.h"
#include "ffmpeg_content.h"
+#include "job.h"
#include "ffmpeg_audio_stream.h"
#include "ffmpeg_subtitle_stream.h"
#include "util.h"
-#include "safe_stringstream.h"
+#include <boost/foreach.hpp>
+#include <iostream>
#include "i18n.h"
using std::max;
using boost::shared_ptr;
using boost::optional;
+using namespace dcpomatic;
-FFmpegExaminer::FFmpegExaminer (shared_ptr<const FFmpegContent> c)
+/** @param job job that the examiner is operating in, or 0 */
+FFmpegExaminer::FFmpegExaminer (shared_ptr<const FFmpegContent> c, shared_ptr<Job> job)
: FFmpeg (c)
+ , _video_length (0)
+ , _need_video_length (false)
{
/* Find audio and subtitle streams */
if (s->codec->channel_layout == 0) {
s->codec->channel_layout = av_get_default_channel_layout (s->codec->channels);
}
-
+
+ DCPOMATIC_ASSERT (_format_context->duration != AV_NOPTS_VALUE);
+ DCPOMATIC_ASSERT (s->codec->codec);
+ DCPOMATIC_ASSERT (s->codec->codec->name);
+
_audio_streams.push_back (
shared_ptr<FFmpegAudioStream> (
- new FFmpegAudioStream (audio_stream_name (s), s->id, s->codec->sample_rate, s->codec->channels)
+ new FFmpegAudioStream (
+ stream_name (s),
+ s->codec->codec->name,
+ s->id,
+ s->codec->sample_rate,
+ llrint ((double (_format_context->duration) / AV_TIME_BASE) * s->codec->sample_rate),
+ s->codec->channels
+ )
)
);
}
}
+ if (has_video ()) {
+ /* See if the header has duration information in it */
+ _need_video_length = _format_context->duration == AV_NOPTS_VALUE;
+ if (!_need_video_length) {
+ _video_length = llrint ((double (_format_context->duration) / AV_TIME_BASE) * video_frame_rate().get());
+ }
+ }
+
+ if (job && _need_video_length) {
+ job->sub (_("Finding length"));
+ }
+
/* Run through until we find:
* - the first video.
* - the first audio for each stream.
- * - the subtitle periods for each stream.
- *
- * We have to note subtitle periods as otherwise we have no way of knowing
- * where we should look for subtitles (video and audio are always present,
- * so they are ok).
*/
+
+ int64_t const len = _file_group.length ();
while (true) {
int r = av_read_frame (_format_context, &_packet);
if (r < 0) {
break;
}
+ if (job) {
+ if (len > 0) {
+ job->set_progress (float (_format_context->pb->pos) / len);
+ } else {
+ job->set_progress_unknown ();
+ }
+ }
+
AVCodecContext* context = _format_context->streams[_packet.stream_index]->codec;
- if (_packet.stream_index == _video_stream) {
+ if (_video_stream && _packet.stream_index == _video_stream.get()) {
video_packet (context);
}
-
+
+ bool got_all_audio = true;
+
for (size_t i = 0; i < _audio_streams.size(); ++i) {
if (_audio_streams[i]->uses_index (_format_context, _packet.stream_index)) {
audio_packet (context, _audio_streams[i]);
}
+ if (!_audio_streams[i]->first_audio) {
+ got_all_audio = false;
+ }
}
- for (size_t i = 0; i < _subtitle_streams.size(); ++i) {
- if (_subtitle_streams[i]->uses_index (_format_context, _packet.stream_index)) {
- subtitle_packet (context, _subtitle_streams[i]);
+ av_packet_unref (&_packet);
+
+ if (_first_video && got_all_audio) {
+ /* All done */
+ break;
+ }
+ }
+
+ if (_video_stream) {
+ /* This code taken from get_rotation() in ffmpeg:cmdutils.c */
+ AVStream* stream = _format_context->streams[*_video_stream];
+ AVDictionaryEntry* rotate_tag = av_dict_get (stream->metadata, "rotate", 0, 0);
+ uint8_t* displaymatrix = av_stream_get_side_data (stream, AV_PKT_DATA_DISPLAYMATRIX, 0);
+ _rotation = 0;
+
+ if (rotate_tag && *rotate_tag->value && strcmp(rotate_tag->value, "0")) {
+ char *tail;
+ _rotation = av_strtod (rotate_tag->value, &tail);
+ if (*tail) {
+ _rotation = 0;
}
}
- av_free_packet (&_packet);
+ if (displaymatrix && !_rotation) {
+ _rotation = - av_display_rotation_get ((int32_t*) displaymatrix);
+ }
+
+ _rotation = *_rotation - 360 * floor (*_rotation / 360 + 0.9 / 360);
+
+ DCPOMATIC_ASSERT (fabs (*_rotation - 90 * round (*_rotation / 90)) < 2);
}
+
+#ifdef DCPOMATIC_VARIANT_SWAROOP
+ AVDictionaryEntry* e = av_dict_get (_format_context->metadata, SWAROOP_ID_TAG, 0, 0);
+ if (e) {
+ _id = e->value;
+ }
+#endif
}
void
FFmpegExaminer::video_packet (AVCodecContext* context)
{
- if (_first_video) {
+ DCPOMATIC_ASSERT (_video_stream);
+
+ if (_first_video && !_need_video_length) {
return;
}
int frame_finished;
if (avcodec_decode_video2 (context, _frame, &frame_finished, &_packet) >= 0 && frame_finished) {
- _first_video = frame_time (_format_context->streams[_video_stream]);
+ if (!_first_video) {
+ _first_video = frame_time (_format_context->streams[_video_stream.get()]);
+ }
+ if (_need_video_length) {
+ _video_length = frame_time (
+ _format_context->streams[_video_stream.get()]
+ ).get_value_or (ContentTime ()).frames_round (video_frame_rate().get ());
+ }
}
}
}
}
-void
-FFmpegExaminer::subtitle_packet (AVCodecContext* context, shared_ptr<FFmpegSubtitleStream> stream)
-{
- int frame_finished;
- AVSubtitle sub;
- if (avcodec_decode_subtitle2 (context, &sub, &frame_finished, &_packet) >= 0 && frame_finished) {
- ContentTimePeriod const period = subtitle_period (sub);
- if (sub.num_rects == 0 && !stream->periods.empty () && stream->periods.back().to > period.from) {
- /* Finish the last subtitle */
- stream->periods.back().to = period.from;
- } else if (sub.num_rects == 1) {
- stream->periods.push_back (period);
- }
- }
-}
-
optional<ContentTime>
FFmpegExaminer::frame_time (AVStream* s) const
{
optional<ContentTime> t;
-
+
int64_t const bet = av_frame_get_best_effort_timestamp (_frame);
if (bet != AV_NOPTS_VALUE) {
t = ContentTime::from_seconds (bet * av_q2d (s->time_base));
return t;
}
-float
+optional<double>
FFmpegExaminer::video_frame_rate () const
{
- /* 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]));
+ DCPOMATIC_ASSERT (_video_stream);
+ return av_q2d(av_guess_frame_rate(_format_context, _format_context->streams[_video_stream.get()], 0));
}
dcp::Size
}
/** @return Length according to our content's header */
-ContentTime
+Frame
FFmpegExaminer::video_length () const
{
- ContentTime const length = ContentTime::from_seconds (double (_format_context->duration) / AV_TIME_BASE);
- return ContentTime (max (ContentTime::Type (1), length.get ()));
+ return max (Frame (1), _video_length);
}
-string
-FFmpegExaminer::audio_stream_name (AVStream* s) const
+optional<double>
+FFmpegExaminer::sample_aspect_ratio () const
{
- SafeStringStream n;
-
- n << stream_name (s);
-
- if (!n.str().empty()) {
- n << "; ";
+ DCPOMATIC_ASSERT (_video_stream);
+ AVRational sar = av_guess_sample_aspect_ratio (_format_context, _format_context->streams[_video_stream.get()], 0);
+ if (sar.num == 0) {
+ /* I assume this means that we don't know */
+ return optional<double> ();
}
-
- n << s->codec->channels << " channels";
-
- return n.str ();
+ return double (sar.num) / sar.den;
}
string
FFmpegExaminer::subtitle_stream_name (AVStream* s) const
{
- SafeStringStream n;
+ string n = stream_name (s);
- n << stream_name (s);
-
- if (n.str().empty()) {
- n << _("unknown");
+ if (n.empty()) {
+ n = _("unknown");
}
- return n.str ();
+ return n;
}
string
FFmpegExaminer::stream_name (AVStream* s) const
{
- SafeStringStream n;
+ string n;
if (s->metadata) {
AVDictionaryEntry const * lang = av_dict_get (s->metadata, "language", 0, 0);
if (lang) {
- n << lang->value;
+ n = lang->value;
}
-
+
AVDictionaryEntry const * title = av_dict_get (s->metadata, "title", 0, 0);
if (title) {
- if (!n.str().empty()) {
- n << " ";
+ if (!n.empty()) {
+ n += " ";
}
- n << title->value;
+ n += title->value;
}
}
- return n.str ();
+ return n;
+}
+
+optional<int>
+FFmpegExaminer::bits_per_pixel () const
+{
+ if (video_codec_context()->pix_fmt == -1) {
+ return optional<int>();
+ }
+
+ AVPixFmtDescriptor const * d = av_pix_fmt_desc_get (video_codec_context()->pix_fmt);
+ DCPOMATIC_ASSERT (d);
+ return av_get_bits_per_pixel (d);
+}
+
+bool
+FFmpegExaminer::yuv () const
+{
+ switch (video_codec_context()->pix_fmt) {
+ case AV_PIX_FMT_YUV420P:
+ case AV_PIX_FMT_YUYV422:
+ case AV_PIX_FMT_YUV422P:
+ case AV_PIX_FMT_YUV444P:
+ case AV_PIX_FMT_YUV410P:
+ case AV_PIX_FMT_YUV411P:
+ case AV_PIX_FMT_YUVJ420P:
+ case AV_PIX_FMT_YUVJ422P:
+ case AV_PIX_FMT_YUVJ444P:
+ case AV_PIX_FMT_UYVY422:
+ case AV_PIX_FMT_UYYVYY411:
+ case AV_PIX_FMT_NV12:
+ case AV_PIX_FMT_NV21:
+ case AV_PIX_FMT_YUV440P:
+ case AV_PIX_FMT_YUVJ440P:
+ case AV_PIX_FMT_YUVA420P:
+ case AV_PIX_FMT_YUV420P16LE:
+ case AV_PIX_FMT_YUV420P16BE:
+ case AV_PIX_FMT_YUV422P16LE:
+ case AV_PIX_FMT_YUV422P16BE:
+ case AV_PIX_FMT_YUV444P16LE:
+ case AV_PIX_FMT_YUV444P16BE:
+ case AV_PIX_FMT_YUV420P9BE:
+ case AV_PIX_FMT_YUV420P9LE:
+ case AV_PIX_FMT_YUV420P10BE:
+ case AV_PIX_FMT_YUV420P10LE:
+ case AV_PIX_FMT_YUV422P10BE:
+ case AV_PIX_FMT_YUV422P10LE:
+ case AV_PIX_FMT_YUV444P9BE:
+ case AV_PIX_FMT_YUV444P9LE:
+ case AV_PIX_FMT_YUV444P10BE:
+ case AV_PIX_FMT_YUV444P10LE:
+ case AV_PIX_FMT_YUV422P9BE:
+ case AV_PIX_FMT_YUV422P9LE:
+ case AV_PIX_FMT_YUVA420P9BE:
+ case AV_PIX_FMT_YUVA420P9LE:
+ case AV_PIX_FMT_YUVA422P9BE:
+ case AV_PIX_FMT_YUVA422P9LE:
+ case AV_PIX_FMT_YUVA444P9BE:
+ case AV_PIX_FMT_YUVA444P9LE:
+ case AV_PIX_FMT_YUVA420P10BE:
+ case AV_PIX_FMT_YUVA420P10LE:
+ case AV_PIX_FMT_YUVA422P10BE:
+ case AV_PIX_FMT_YUVA422P10LE:
+ case AV_PIX_FMT_YUVA444P10BE:
+ case AV_PIX_FMT_YUVA444P10LE:
+ case AV_PIX_FMT_YUVA420P16BE:
+ case AV_PIX_FMT_YUVA420P16LE:
+ case AV_PIX_FMT_YUVA422P16BE:
+ case AV_PIX_FMT_YUVA422P16LE:
+ case AV_PIX_FMT_YUVA444P16BE:
+ case AV_PIX_FMT_YUVA444P16LE:
+ case AV_PIX_FMT_NV16:
+ case AV_PIX_FMT_NV20LE:
+ case AV_PIX_FMT_NV20BE:
+ case AV_PIX_FMT_YVYU422:
+ case AV_PIX_FMT_YUVA444P:
+ case AV_PIX_FMT_YUVA422P:
+ case AV_PIX_FMT_YUV420P12BE:
+ case AV_PIX_FMT_YUV420P12LE:
+ case AV_PIX_FMT_YUV420P14BE:
+ case AV_PIX_FMT_YUV420P14LE:
+ case AV_PIX_FMT_YUV422P12BE:
+ case AV_PIX_FMT_YUV422P12LE:
+ case AV_PIX_FMT_YUV422P14BE:
+ case AV_PIX_FMT_YUV422P14LE:
+ case AV_PIX_FMT_YUV444P12BE:
+ case AV_PIX_FMT_YUV444P12LE:
+ case AV_PIX_FMT_YUV444P14BE:
+ case AV_PIX_FMT_YUV444P14LE:
+ case AV_PIX_FMT_YUVJ411P:
+ return true;
+ default:
+ return false;
+ }
+}
+
+bool
+FFmpegExaminer::has_video () const
+{
+ return static_cast<bool> (_video_stream);
+}
+
+VideoRange
+FFmpegExaminer::range () const
+{
+ switch (color_range()) {
+ case AVCOL_RANGE_MPEG:
+ case AVCOL_RANGE_UNSPECIFIED:
+ return VIDEO_RANGE_VIDEO;
+ case AVCOL_RANGE_JPEG:
+ default:
+ return VIDEO_RANGE_FULL;
+ }
}
projects / dcpomatic.git / blobdiff