write_packet()

bool MayaFlux::IO::FFmpegMuxContext::write_packet

(

AVPacket *

pkt

)

Submit one encoded packet for interleaved writing.

Uses av_interleaved_write_frame, which buffers packets internally to preserve correct interleaving order for containers that require it (MP4, MKV). For single-stream audio-only containers (WAV, FLAC) this is equivalent to av_write_frame.

The packet's stream_index, PTS, DTS, and duration must be set by the calling encode context before this call. Ownership of the packet data is transferred to FFmpeg; the caller must not reference pkt after return.

Parameters

pkt	Encoded packet with all fields populated.

Returns

True on success.

Definition at line 124 of file FFmpegMuxContext.cpp.

{
    if (!format_context || !m_header_written) {
        m_last_error = "write_packet called before header was written";
        return false;
    }
 
    int ret = av_interleaved_write_frame(format_context, pkt);
    if (ret < 0) {
        char errbuf[AV_ERROR_MAX_STRING_SIZE];
        av_strerror(ret, errbuf, sizeof(errbuf));
        m_last_error = std::string("av_interleaved_write_frame failed: ") + errbuf;
        return false;
    }
 
    return true;
}

References format_context, m_header_written, and m_last_error.

Referenced by MayaFlux::IO::AudioEncodeContext::drain_packets(), and MayaFlux::IO::VideoEncodeContext::drain_packets().

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