[FFmpeg-devel] [RFC] LOAS (aka LATM) demuxer

[Martin Storsjö]

On Sun, 1 Aug 2010, Janne Grunau wrote:

> +static int latm_read_audio_mux_element_data(AVFormatContext *s,
> +                                            AVPacket *pkt)
> +{
> +    struct latm_demux_context *ctx = s->priv_data;
> +    struct latm_stream_config *cfg = &ctx->streams[ctx->cur_stream];
> +    int j;
> +
> +    if (!ctx->audio_mux_version_A) {
> +
> +        pkt->pts  = pkt->dts = 2048 * ctx->pkt_cnt;
> +        pkt->data = av_malloc(cfg->mux_slot_length);
> +        pkt->size = cfg->mux_slot_length;
> +        pkt->stream_index = ctx->cur_stream++;
> +        //TODO: try to use byte copying
> +        for (j = 0; j < cfg->mux_slot_length; j++)
> +            pkt->data[j] = get_bits(ctx->gb, 8);
> +        //av_hex_dump_log(s, AV_LOG_INFO, pkt->data, pkt->size);

This could use an av_init_packet(), to make sure all other fields are
properly initialized. Also, you need to set pkt->destruct =
av_destruct_packet, otherwise the allocated data will be leaked.

// Martin