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Added in metadata encoding capabilities (writer.info.metadata["title"] = "My Title"). Only certain tag names are accepted (see FFmpeg for more on which tags are supported by which codecs).

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This commit is contained in:
Jonathan Thomas
2018-03-04 03:10:59 -06:00
parent 92eefbe934
commit 26e96e009b
3 changed files with 52 additions and 22 deletions
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19
src/FFmpegWriter.cpp
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@@ -335,6 +335,13 @@ void FFmpegWriter::WriteHeader()
// Write the stream header, if any
// TODO: add avoptions / parameters instead of NULL
// Add general metadata (if any)
for(std::map<string, string>::iterator iter = info.metadata.begin(); iter != info.metadata.end(); ++iter)
{
av_dict_set(&oc->metadata, iter->first.c_str(), iter->second.c_str(), 0);
}
avformat_write_header(oc, NULL);
// Mark as 'written'
@@ -1018,6 +1025,12 @@ void FFmpegWriter::open_audio(AVFormatContext *oc, AVStream *st)
audio_encoder_buffer_size = AUDIO_PACKET_ENCODING_SIZE;
audio_encoder_buffer = new uint8_t[audio_encoder_buffer_size];
// Add audio metadata (if any)
for(std::map<string, string>::iterator iter = info.metadata.begin(); iter != info.metadata.end(); ++iter)
{
av_dict_set(&st->metadata, iter->first.c_str(), iter->second.c_str(), 0);
}
ZmqLogger::Instance()->AppendDebugMethod("FFmpegWriter::open_audio", "audio_codec->thread_count", audio_codec->thread_count, "audio_input_frame_size", audio_input_frame_size, "buffer_size", AVCODEC_MAX_AUDIO_FRAME_SIZE + FF_INPUT_BUFFER_PADDING_SIZE, "", -1, "", -1, "", -1);
}
@@ -1046,6 +1059,12 @@ void FFmpegWriter::open_video(AVFormatContext *oc, AVStream *st)
if (avcodec_open2(video_codec, codec, NULL) < 0)
throw InvalidCodec("Could not open codec", path);
// Add video metadata (if any)
for(std::map<string, string>::iterator iter = info.metadata.begin(); iter != info.metadata.end(); ++iter)
{
av_dict_set(&st->metadata, iter->first.c_str(), iter->second.c_str(), 0);
}
ZmqLogger::Instance()->AppendDebugMethod("FFmpegWriter::open_video", "video_codec->thread_count", video_codec->thread_count, "", -1, "", -1, "", -1, "", -1, "", -1);
}