#include "ffmpeg.h"
#include "ffmpeg_content.h"
#include "ffmpeg_audio_stream.h"
+#include "ffmpeg_subtitle_stream.h"
#include "exceptions.h"
#include "util.h"
using std::string;
using std::cout;
-using std::stringstream;
using boost::shared_ptr;
using dcp::raw_convert;
, _video_stream (-1)
{
setup_general ();
- setup_video ();
- setup_audio ();
+ setup_decoders ();
}
FFmpeg::~FFmpeg ()
boost::mutex::scoped_lock lm (_mutex);
for (uint32_t i = 0; i < _format_context->nb_streams; ++i) {
- AVCodecContext* context = _format_context->streams[i]->codec;
- if (context->codec_type == AVMEDIA_TYPE_VIDEO || context->codec_type == AVMEDIA_TYPE_AUDIO) {
- avcodec_close (context);
- }
+ avcodec_close (_format_context->streams[i]->codec);
}
av_frame_free (&_frame);
-
avformat_close_input (&_format_context);
}
}
void
-FFmpeg::setup_video ()
-{
- boost::mutex::scoped_lock lm (_mutex);
-
- assert (_video_stream >= 0);
- AVCodecContext* context = _format_context->streams[_video_stream]->codec;
- AVCodec* codec = avcodec_find_decoder (context->codec_id);
-
- if (codec == 0) {
- throw DecodeError (_("could not find video decoder"));
- }
-
- if (avcodec_open2 (context, codec, 0) < 0) {
- throw DecodeError (N_("could not open video decoder"));
- }
-}
-
-void
-FFmpeg::setup_audio ()
+FFmpeg::setup_decoders ()
{
boost::mutex::scoped_lock lm (_mutex);
for (uint32_t i = 0; i < _format_context->nb_streams; ++i) {
AVCodecContext* context = _format_context->streams[i]->codec;
- if (context->codec_type != AVMEDIA_TYPE_AUDIO) {
- continue;
- }
AVCodec* codec = avcodec_find_decoder (context->codec_id);
- if (codec == 0) {
- throw DecodeError (_("could not find audio decoder"));
- }
-
- if (avcodec_open2 (context, codec, 0) < 0) {
- throw DecodeError (N_("could not open audio decoder"));
+ if (codec) {
+ if (avcodec_open2 (context, codec, 0) < 0) {
+ throw DecodeError (N_("could not open decoder"));
+ }
}
+
+ /* We are silently ignoring any failures to find suitable decoders here */
}
}
-
AVCodecContext *
FFmpeg::video_codec_context () const
{
return _ffmpeg_content->audio_stream()->stream(_format_context)->codec;
}
+AVCodecContext *
+FFmpeg::subtitle_codec_context () const
+{
+ if (!_ffmpeg_content->subtitle_stream ()) {
+ return 0;
+ }
+
+ return _ffmpeg_content->subtitle_stream()->stream(_format_context)->codec;
+}
+
int
FFmpeg::avio_read (uint8_t* buffer, int const amount)
{