/*
- Copyright (C) 2013-2015 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2013-2016 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/>.
*/
#include "film.h"
#include "exceptions.h"
#include "util.h"
-#include "raw_convert.h"
#include "log.h"
#include "ffmpeg_subtitle_stream.h"
#include "ffmpeg_audio_stream.h"
+#include "digester.h"
#include "compose.hpp"
+#include <dcp/raw_convert.h>
extern "C" {
#include <libavcodec/avcodec.h>
#include <libavformat/avformat.h>
using std::vector;
using boost::shared_ptr;
using boost::optional;
+using dcp::raw_convert;
boost::mutex FFmpeg::_mutex;
boost::weak_ptr<Log> FFmpeg::_ffmpeg_log;
, _avio_context (0)
, _format_context (0)
, _frame (0)
- , _video_stream (-1)
{
setup_general ();
setup_decoders ();
if (log) {
string str (line);
boost::algorithm::trim (str);
- log->log (String::compose ("FFmpeg: %1", str), Log::TYPE_GENERAL);
+ log->log (String::compose ("FFmpeg: %1", str), LogEntry::TYPE_GENERAL);
} else {
cerr << line;
}
void
FFmpeg::setup_general ()
{
- av_register_all ();
-
/* This might not work too well in some cases of multiple FFmpeg decoders,
but it's probably good enough.
*/
av_dict_set (&options, "analyzeduration", raw_convert<string> (5 * 60 * 1000000).c_str(), 0);
av_dict_set (&options, "probesize", raw_convert<string> (5 * 60 * 1000000).c_str(), 0);
- if (avformat_open_input (&_format_context, 0, 0, &options) < 0) {
- throw OpenFileError (_ffmpeg_content->path(0).string ());
+ int e = avformat_open_input (&_format_context, 0, 0, &options);
+ if (e < 0) {
+ throw OpenFileError (_ffmpeg_content->path(0).string(), e, true);
}
if (avformat_find_stream_info (_format_context, 0) < 0) {
/* Find video stream */
- int video_stream_undefined_frame_rate = -1;
+ optional<int> video_stream_undefined_frame_rate;
for (uint32_t i = 0; i < _format_context->nb_streams; ++i) {
AVStream* s = _format_context->streams[i];
- if (s->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
+ if (s->codec->codec_type == AVMEDIA_TYPE_VIDEO && avcodec_find_decoder(s->codec->codec_id)) {
if (s->avg_frame_rate.num > 0 && s->avg_frame_rate.den > 0) {
/* This is definitely our video stream */
_video_stream = i;
/* Files from iTunes sometimes have two video streams, one with the avg_frame_rate.num and .den set
to zero. Only use such a stream if there is no alternative.
*/
- if (_video_stream == -1 && video_stream_undefined_frame_rate != -1) {
- _video_stream = video_stream_undefined_frame_rate;
- }
-
- if (_video_stream < 0) {
- throw DecodeError (N_("could not find video stream"));
+ if (!_video_stream && video_stream_undefined_frame_rate) {
+ _video_stream = video_stream_undefined_frame_rate.get();
}
/* Hack: if the AVStreams have duplicate IDs, replace them with our
AVCodec* codec = avcodec_find_decoder (context->codec_id);
if (codec) {
+ AVDictionary* options = 0;
/* This option disables decoding of DCA frame footers in our patched version
of FFmpeg. I believe these footers are of no use to us, and they can cause
problems when FFmpeg fails to decode them (mantis #352).
*/
- AVDictionary* options = 0;
av_dict_set (&options, "disable_footer", "1", 0);
+ /* This allows decoding of some DNxHR 444 and HQX files; see
+ https://trac.ffmpeg.org/ticket/5681
+ */
+ av_dict_set_int (&options, "strict", FF_COMPLIANCE_EXPERIMENTAL, 0);
if (avcodec_open2 (context, codec, &options) < 0) {
throw DecodeError (N_("could not open decoder"));
}
+ } else {
+ shared_ptr<Log> log = _ffmpeg_log.lock ();
+ if (log) {
+ log->log (String::compose ("No codec found for stream %1", i), LogEntry::TYPE_WARNING);
+ }
}
-
- /* We are silently ignoring any failures to find suitable decoders here */
}
}
AVCodecContext *
FFmpeg::video_codec_context () const
{
- return _format_context->streams[_video_stream]->codec;
+ if (!_video_stream) {
+ return 0;
+ }
+
+ return _format_context->streams[_video_stream.get()]->codec;
}
AVCodecContext *
/* Now adjust so that the video pts starts on a frame */
if (first_video) {
- ContentTime fvc = first_video.get() + po;
- po += fvc.round_up (video_frame_rate) - fvc;
+ ContentTime const fvc = first_video.get() + po;
+ po += fvc.ceil (video_frame_rate) - fvc;
}
return po;