Lots of #include <iostream>s for Arch.

[dcpomatic.git] / src / lib / ffmpeg.cc

diff --git a/src/lib/ffmpeg.cc b/src/lib/ffmpeg.cc
index f5af239b0a0eeba9445d85a98fbe97c767ae9658..8fa03fdffb552f3ddbd49042df0d41d084d5d6ed 100644 (file)
--- a/src/lib/ffmpeg.cc
+++ b/src/lib/ffmpeg.cc
@@ -1,5 +1,5 @@
 /*
 /*

-    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
     it under the terms of the GNU General Public License as published by
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by


@@ -17,28 +17,32 @@
 
 */
 
 
 */
 

+#include "ffmpeg.h"
+#include "ffmpeg_content.h"
+#include "film.h"
+#include "exceptions.h"
+#include "util.h"
+#include "raw_convert.h"
+#include "log.h"
+#include "ffmpeg_subtitle_stream.h"
+#include "compose.hpp"

 extern "C" {
 #include <libavcodec/avcodec.h>
 #include <libavformat/avformat.h>
 #include <libswscale/swscale.h>
 }
 extern "C" {
 #include <libavcodec/avcodec.h>
 #include <libavformat/avformat.h>
 #include <libswscale/swscale.h>
 }

-#include <dcp/raw_convert.h>
-#include "ffmpeg.h"
-#include "ffmpeg_content.h"
-#include "ffmpeg_audio_stream.h"
-#include "ffmpeg_subtitle_stream.h"
-#include "exceptions.h"
-#include "util.h"
+#include <boost/algorithm/string.hpp>
+#include <iostream>

 
 #include "i18n.h"
 
 using std::string;
 using std::cout;
 
 #include "i18n.h"
 
 using std::string;
 using std::cout;

-using std::stringstream;
+using std::cerr;

 using boost::shared_ptr;
 using boost::shared_ptr;

-using dcp::raw_convert;

 
 boost::mutex FFmpeg::_mutex;
 
 boost::mutex FFmpeg::_mutex;

+boost::weak_ptr<Log> FFmpeg::_ffmpeg_log;

 
 FFmpeg::FFmpeg (boost::shared_ptr<const FFmpegContent> c)
        : _ffmpeg_content (c)
 
 FFmpeg::FFmpeg (boost::shared_ptr<const FFmpegContent> c)
        : _ffmpeg_content (c)


@@ -77,24 +81,50 @@ avio_seek_wrapper (void* data, int64_t offset, int whence)
        return reinterpret_cast<FFmpeg*>(data)->avio_seek (offset, whence);
 }
 
        return reinterpret_cast<FFmpeg*>(data)->avio_seek (offset, whence);
 }
 

+void
+FFmpeg::ffmpeg_log_callback (void* ptr, int level, const char* fmt, va_list vl)
+{
+       if (level > AV_LOG_WARNING) {
+               return;
+       }
+
+       char line[1024];
+       static int prefix = 0;
+       av_log_format_line (ptr, level, fmt, vl, line, sizeof (line), &prefix);
+       shared_ptr<Log> log = _ffmpeg_log.lock ();
+       if (log) {
+               string str (line);
+               boost::algorithm::trim (str);
+               log->log (String::compose ("FFmpeg: %1", str), Log::TYPE_GENERAL);
+       } else {
+               cerr << line;
+       }
+}
+

 void
 FFmpeg::setup_general ()
 {
        av_register_all ();
 
 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.
+       */
+       _ffmpeg_log = _ffmpeg_content->film()->log ();
+       av_log_set_callback (FFmpeg::ffmpeg_log_callback);
+

        _file_group.set_paths (_ffmpeg_content->paths ());
        _avio_buffer = static_cast<uint8_t*> (wrapped_av_malloc (_avio_buffer_size));
        _avio_context = avio_alloc_context (_avio_buffer, _avio_buffer_size, 0, this, avio_read_wrapper, 0, avio_seek_wrapper);
        _format_context = avformat_alloc_context ();
        _format_context->pb = _avio_context;
        _file_group.set_paths (_ffmpeg_content->paths ());
        _avio_buffer = static_cast<uint8_t*> (wrapped_av_malloc (_avio_buffer_size));
        _avio_context = avio_alloc_context (_avio_buffer, _avio_buffer_size, 0, this, avio_read_wrapper, 0, avio_seek_wrapper);
        _format_context = avformat_alloc_context ();
        _format_context->pb = _avio_context;

-       
+

        AVDictionary* options = 0;
        /* These durations are in microseconds, and represent how far into the content file
           we will look for streams.
        */
        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);
        AVDictionary* options = 0;
        /* These durations are in microseconds, and represent how far into the content file
           we will look for streams.
        */
        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 ());
        }
        if (avformat_open_input (&_format_context, 0, 0, &options) < 0) {
                throw OpenFileError (_ffmpeg_content->path(0).string ());
        }


@@ -105,29 +135,48 @@ FFmpeg::setup_general ()
 
        /* Find video stream */
 
 
        /* Find video stream */
 

+       int video_stream_undefined_frame_rate = -1;
+

        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) {
        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) {

-                       _video_stream = i;
+                       if (s->avg_frame_rate.num > 0 && s->avg_frame_rate.den > 0) {
+                               /* This is definitely our video stream */
+                               _video_stream = i;
+                       } else {
+                               /* This is our video stream if we don't get a better offer */
+                               video_stream_undefined_frame_rate = 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 < 0) {
                throw DecodeError (N_("could not find video stream"));
        }
 

-       /* Hack: if the AVStreams have zero IDs, put some in.  We
-          use the IDs so that we can cope with VOBs, in which streams
+       /* Hack: if the AVStreams have duplicate IDs, replace them with our
+          own.  We use the IDs so that we can cope with VOBs, in which streams

           move about in index but remain with the same ID in different
           move about in index but remain with the same ID in different

-          VOBs.  However, some files have all-zero IDs, hence this hack.
+          VOBs.  However, some files have duplicate IDs, hence this hack.

        */
        */

-          
-       uint32_t i = 0;
-       while (i < _format_context->nb_streams && _format_context->streams[i]->id == 0) {
-               ++i;
+
+       bool duplicates = false;
+       for (uint32_t i = 0; i < _format_context->nb_streams; ++i) {
+               for (uint32_t j = i + 1; j < _format_context->nb_streams; ++j) {
+                       if (_format_context->streams[i]->id == _format_context->streams[j]->id) {
+                               duplicates = true;
+                       }
+               }

        }
 
        }
 

-       if (i == _format_context->nb_streams) {
+       if (duplicates) {

                /* Put in our own IDs */
                for (uint32_t i = 0; i < _format_context->nb_streams; ++i) {
                        _format_context->streams[i]->id = i;
                /* Put in our own IDs */
                for (uint32_t i = 0; i < _format_context->nb_streams; ++i) {
                        _format_context->streams[i]->id = i;


@@ -147,10 +196,18 @@ FFmpeg::setup_decoders ()
 
        for (uint32_t i = 0; i < _format_context->nb_streams; ++i) {
                AVCodecContext* context = _format_context->streams[i]->codec;
 
        for (uint32_t i = 0; i < _format_context->nb_streams; ++i) {
                AVCodecContext* context = _format_context->streams[i]->codec;

-               
+

                AVCodec* codec = avcodec_find_decoder (context->codec_id);
                if (codec) {
                AVCodec* codec = avcodec_find_decoder (context->codec_id);
                if (codec) {

-                       if (avcodec_open2 (context, codec, 0) < 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);
+
+                       if (avcodec_open2 (context, codec, &options) < 0) {

                                throw DecodeError (N_("could not open decoder"));
                        }
                }
                                throw DecodeError (N_("could not open decoder"));
                        }
                }


@@ -165,23 +222,13 @@ FFmpeg::video_codec_context () const
        return _format_context->streams[_video_stream]->codec;
 }
 
        return _format_context->streams[_video_stream]->codec;
 }
 

-AVCodecContext *
-FFmpeg::audio_codec_context () const
-{
-       if (!_ffmpeg_content->audio_stream ()) {
-               return 0;
-       }
-       
-       return _ffmpeg_content->audio_stream()->stream(_format_context)->codec;
-}
-

 AVCodecContext *
 FFmpeg::subtitle_codec_context () const
 {
        if (!_ffmpeg_content->subtitle_stream ()) {
                return 0;
        }
 AVCodecContext *
 FFmpeg::subtitle_codec_context () const
 {
        if (!_ffmpeg_content->subtitle_stream ()) {
                return 0;
        }

-       
+

        return _ffmpeg_content->subtitle_stream()->stream(_format_context)->codec;
 }
 
        return _ffmpeg_content->subtitle_stream()->stream(_format_context)->codec;
 }
 


@@ -197,6 +244,22 @@ FFmpeg::avio_seek (int64_t const pos, int whence)
        if (whence == AVSEEK_SIZE) {
                return _file_group.length ();
        }
        if (whence == AVSEEK_SIZE) {
                return _file_group.length ();
        }

-       
+

        return _file_group.seek (pos, whence);
 }
        return _file_group.seek (pos, whence);
 }

+
+FFmpegSubtitlePeriod
+FFmpeg::subtitle_period (AVSubtitle const & sub)
+{
+       ContentTime const packet_time = ContentTime::from_seconds (static_cast<double> (sub.pts) / AV_TIME_BASE);
+
+       if (sub.end_display_time == static_cast<uint32_t> (-1)) {
+               /* End time is not known */
+               return FFmpegSubtitlePeriod (packet_time + ContentTime::from_seconds (sub.start_display_time / 1e3));
+       }
+
+       return FFmpegSubtitlePeriod (
+               packet_time + ContentTime::from_seconds (sub.start_display_time / 1e3),
+               packet_time + ContentTime::from_seconds (sub.end_display_time / 1e3)
+               );
+}