ffmpeg | branch: master | James Almer <jamrial@gmail.com> | Mon Feb 14 11:28:13 2022 -0300| [825fb5f1cb1a1a64f6d2e4066639c88f224bf971] | committer: James Almer avcodec/setts_bsf: add constants to modify packet duration Signed-off-by: James Almer <jamrial@gmail.com>

http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=825fb5f1cb1a1a64f6...

doc/bitstream_filters.texi | 12 ++++++++++++ libavcodec/setts_bsf.c | 25 ++++++++++++++++++++++++- libavcodec/version.h | 2 +- 3 files changed, 37 insertions(+), 2 deletions(-) diff --git a/doc/bitstream_filters.texi b/doc/bitstream_filters.texi index 46654e9369..689bb52141 100644 --- a/doc/bitstream_filters.texi +++ b/doc/bitstream_filters.texi @@ -759,6 +759,9 @@ The demux timestamp in input. @item PTS The presentation timestamp in input. +@item DURATION +The duration in input. + @item STARTDTS The DTS of the first packet. @@ -771,18 +774,27 @@ The previous input DTS. @item PREV_INPTS The previous input PTS. +@item PREV_INDURATION +The previous input duration. + @item PREV_OUTDTS The previous output DTS. @item PREV_OUTPTS The previous output PTS. +@item PREV_OUTDURATION +The previous output duration. + @item NEXT_DTS The next input DTS. @item NEXT_PTS The next input PTS. +@item NEXT_DURATION +The next input duration. + @item TB The timebase of stream packet belongs. diff --git a/libavcodec/setts_bsf.c b/libavcodec/setts_bsf.c index f0243a1114..eadc4e4d34 100644 --- a/libavcodec/setts_bsf.c +++ b/libavcodec/setts_bsf.c @@ -35,12 +35,16 @@ static const char *const var_names[] = { "POS", ///< original position in the file of the frame "PREV_INPTS", ///< previous input PTS "PREV_INDTS", ///< previous input DTS + "PREV_INDURATION", ///< previous input duration "PREV_OUTPTS", ///< previous output PTS "PREV_OUTDTS", ///< previous output DTS + "PREV_OUTDURATION", ///< previous output duration "NEXT_PTS", ///< next input PTS "NEXT_DTS", ///< next input DTS + "NEXT_DURATION", ///< next input duration "PTS", ///< original PTS in the file of the frame "DTS", ///< original DTS in the file of the frame + "DURATION", ///< original duration in the file of the frame "STARTPTS", ///< PTS at start of movie "STARTDTS", ///< DTS at start of movie "TB", ///< timebase of the stream @@ -55,12 +59,16 @@ enum var_name { VAR_POS, VAR_PREV_INPTS, VAR_PREV_INDTS, + VAR_PREV_INDUR, VAR_PREV_OUTPTS, VAR_PREV_OUTDTS, + VAR_PREV_OUTDUR, VAR_NEXT_PTS, VAR_NEXT_DTS, + VAR_NEXT_DUR, VAR_PTS, VAR_DTS, + VAR_DURATION, VAR_STARTPTS, VAR_STARTDTS, VAR_TB, @@ -75,6 +83,7 @@ typedef struct SetTSContext { char *ts_str; char *pts_str; char *dts_str; + char *duration_str; int64_t frame_number; @@ -86,6 +95,7 @@ typedef struct SetTSContext { AVExpr *ts_expr; AVExpr *pts_expr; AVExpr *dts_expr; + AVExpr *duration_expr; AVPacket *prev_inpkt; AVPacket *prev_outpkt; @@ -109,6 +119,12 @@ static int setts_init(AVBSFContext *ctx) return ret; } + if ((ret = av_expr_parse(&s->duration_expr, s->duration_str, + var_names, NULL, NULL, NULL, NULL, 0, ctx)) < 0) { + av_log(ctx, AV_LOG_ERROR, "Error while parsing duration expression '%s'\n", s->duration_str); + return ret; + } + if (s->pts_str) { if ((ret = av_expr_parse(&s->pts_expr, s->pts_str, var_names, NULL, NULL, NULL, NULL, 0, ctx)) < 0) { @@ -136,7 +152,7 @@ static int setts_init(AVBSFContext *ctx) static int setts_filter(AVBSFContext *ctx, AVPacket *pkt) { SetTSContext *s = ctx->priv_data; - int64_t new_ts, new_pts, new_dts; + int64_t new_ts, new_pts, new_dts, new_duration; int ret; ret = ff_bsf_get_packet_ref(ctx, pkt); @@ -159,18 +175,23 @@ static int setts_filter(AVBSFContext *ctx, AVPacket *pkt) s->var_values[VAR_POS] = s->cur_pkt->pos; s->var_values[VAR_PTS] = s->cur_pkt->pts; s->var_values[VAR_DTS] = s->cur_pkt->dts; + s->var_values[VAR_DURATION] = s->cur_pkt->duration; s->var_values[VAR_PREV_INPTS] = s->prev_inpkt->pts; s->var_values[VAR_PREV_INDTS] = s->prev_inpkt->dts; + s->var_values[VAR_PREV_INDUR] = s->prev_inpkt->duration; s->var_values[VAR_PREV_OUTPTS] = s->prev_outpkt->pts; s->var_values[VAR_PREV_OUTDTS] = s->prev_outpkt->dts; + s->var_values[VAR_PREV_OUTDUR] = s->prev_outpkt->duration; s->var_values[VAR_NEXT_PTS] = pkt->pts; s->var_values[VAR_NEXT_DTS] = pkt->dts; + s->var_values[VAR_NEXT_DUR] = pkt->duration; s->var_values[VAR_STARTPTS] = s->start_pts; s->var_values[VAR_STARTDTS] = s->start_dts; s->var_values[VAR_TB] = ctx->time_base_out.den ? av_q2d(ctx->time_base_out) : 0; s->var_values[VAR_SR] = ctx->par_in->sample_rate; new_ts = llrint(av_expr_eval(s->ts_expr, s->var_values, NULL)); + new_duration = llrint(av_expr_eval(s->duration_expr, s->var_values, NULL)); if (s->pts_str) { s->var_values[VAR_TS] = s->cur_pkt->pts; @@ -197,6 +218,7 @@ static int setts_filter(AVBSFContext *ctx, AVPacket *pkt) pkt->pts = new_pts; pkt->dts = new_dts; + pkt->duration = new_duration; ret = av_packet_ref(s->prev_outpkt, pkt); if (ret < 0) @@ -228,6 +250,7 @@ static const AVOption options[] = { { "ts", "set expression for packet PTS and DTS", OFFSET(ts_str), AV_OPT_TYPE_STRING, {.str="TS"}, 0, 0, FLAGS }, { "pts", "set expression for packet PTS", OFFSET(pts_str), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS }, { "dts", "set expression for packet DTS", OFFSET(dts_str), AV_OPT_TYPE_STRING, {.str=NULL}, 0, 0, FLAGS }, + { "duration", "set expression for packet duration", OFFSET(duration_str), AV_OPT_TYPE_STRING, {.str="DURATION"}, 0, 0, FLAGS }, { NULL }, }; diff --git a/libavcodec/version.h b/libavcodec/version.h index bff9745669..991b4f69bc 100644 --- a/libavcodec/version.h +++ b/libavcodec/version.h @@ -29,7 +29,7 @@ #define LIBAVCODEC_VERSION_MAJOR 59 #define LIBAVCODEC_VERSION_MINOR 21 -#define LIBAVCODEC_VERSION_MICRO 101 +#define LIBAVCODEC_VERSION_MICRO 102 #define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \ LIBAVCODEC_VERSION_MINOR, \