On 3/23/18 10:57 AM, vdi...@akamai.com wrote:
> From: Vishwanath Dixit <vdi...@akamai.com>
>
> ---
> libavformat/dashenc.c | 10 ++++++++++
> 1 file changed, 10 insertions(+)
>
> diff --git a/libavformat/dashenc.c b/libavformat/dashenc.c
> index d20bdba..0ba9f55 100644
> --- a/libavformat/dashenc.c
> +++ b/libavformat/dashenc.c
> @@ -86,6 +86,8 @@ typedef struct OutputStream {
> char full_path[1024];
> char temp_path[1024];
> int64_t chunk_duration;
> + int total_pkt_size;
> + int bitrate_overhead;
Rename this variable to muxer_overhead, for easier understanding.
> } OutputStream;
>
> typedef struct DASHContext {
> @@ -1209,6 +1211,13 @@ static int dash_flush(AVFormatContext *s, int final,
> int stream)
> }
> }
>
> + if (!os->bitrate_overhead)
> + os->bitrate_overhead = ((int64_t) (range_length -
> os->total_pkt_size) *
> + 8 * AV_TIME_BASE) /
> + av_rescale_q(os->max_pts - os->start_pts,
> + st->time_base,
> AV_TIME_BASE_Q);
> + os->total_pkt_size = 0;
> +
> if (!os->bit_rate) {
> // calculate average bitrate of first segment
> int64_t bitrate = (int64_t) range_length * 8 * AV_TIME_BASE /
> av_rescale_q(os->max_pts - os->start_pts,
> @@ -1340,6 +1349,7 @@ static int dash_write_packet(AVFormatContext *s,
> AVPacket *pkt)
> else
> os->max_pts = FFMAX(os->max_pts, pkt->pts + pkt->duration);
> os->packets_written++;
> + os->total_pkt_size += pkt->size;
> if ((ret = ff_write_chained(os->ctx, 0, pkt, s, 0)) < 0)
> return ret;
>
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