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avformat: deprecate unused MP4A_LATM flag 

A generic lavf flag for AAC LATM packetization for the RTP muxer was
added in ef409645f0 and then made inert 20 days later in 0832122880
when a private muxer option was added and the generic flag no longer
read.
This commit is contained in:
Gyan Doshi 2018-06-10 20:18:10 +05:30
parent 0946c0ec17
commit 67747c89ad
5 changed files with 10 additions and 5 deletions
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2
doc/formats.texi
View File

@ -53,8 +53,6 @@ Discard corrupted frames.
Try to interleave output packets by DTS.
@item keepside
Do not merge side data.
@item latm
Enable RTP MP4A-LATM payload.
@item nobuffer
Reduce the latency introduced by optional buffering
@item bitexact

4
libavformat/avformat.h
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@ -1483,7 +1483,9 @@ typedef struct AVFormatContext {
* This flag is mainly intended for testing.
*/
#define AVFMT_FLAG_BITEXACT 0x0400
#define AVFMT_FLAG_MP4A_LATM 0x8000 ///< Enable RTP MP4A-LATM payload
#if FF_API_LAVF_MP4A_LATM
#define AVFMT_FLAG_MP4A_LATM 0x8000 ///< Deprecated, does nothing.
#endif
#define AVFMT_FLAG_SORT_DTS 0x10000 ///< try to interleave outputted packets by dts (using this flag can slow demuxing down)
#define AVFMT_FLAG_PRIV_OPT 0x20000 ///< Enable use of private options by delaying codec open (this could be made default once all code is converted)
#if FF_API_LAVF_KEEPSIDE_FLAG

4
libavformat/options_table.h
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@ -52,7 +52,9 @@ static const AVOption avformat_options[] = {
{"keepside", "deprecated, does nothing", 0, AV_OPT_TYPE_CONST, {.i64 = AVFMT_FLAG_KEEP_SIDE_DATA }, INT_MIN, INT_MAX, D, "fflags"},
#endif
{"fastseek", "fast but inaccurate seeks", 0, AV_OPT_TYPE_CONST, {.i64 = AVFMT_FLAG_FAST_SEEK }, INT_MIN, INT_MAX, D, "fflags"},
{"latm", "enable RTP MP4A-LATM payload", 0, AV_OPT_TYPE_CONST, {.i64 = AVFMT_FLAG_MP4A_LATM }, INT_MIN, INT_MAX, E, "fflags"},
#if FF_API_LAVF_MP4A_LATM
{"latm", "deprecated, does nothing", 0, AV_OPT_TYPE_CONST, {.i64 = AVFMT_FLAG_MP4A_LATM }, INT_MIN, INT_MAX, E, "fflags"},
#endif
{"nobuffer", "reduce the latency introduced by optional buffering", 0, AV_OPT_TYPE_CONST, {.i64 = AVFMT_FLAG_NOBUFFER }, 0, INT_MAX, D, "fflags"},
{"bitexact", "do not write random/volatile data", 0, AV_OPT_TYPE_CONST, { .i64 = AVFMT_FLAG_BITEXACT }, 0, 0, E, "fflags" },
{"shortest", "stop muxing with the shortest stream", 0, AV_OPT_TYPE_CONST, { .i64 = AVFMT_FLAG_SHORTEST }, 0, 0, E, "fflags" },

2
libavformat/rtpenc_chain.c
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@ -58,7 +58,7 @@ int ff_rtp_chain_mux_open(AVFormatContext **out, AVFormatContext *s,
rtpctx->max_delay = s->max_delay;
/* Copy other stream parameters. */
rtpctx->streams[0]->sample_aspect_ratio = st->sample_aspect_ratio;
rtpctx->flags |= s->flags & (AVFMT_FLAG_MP4A_LATM | AVFMT_FLAG_BITEXACT);
rtpctx->flags |= s->flags & AVFMT_FLAG_BITEXACT;
/* Get the payload type from the codec */
if (st->id < RTP_PT_PRIVATE)

3
libavformat/version.h
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@ -97,6 +97,9 @@
#ifndef FF_API_DASH_MIN_SEG_DURATION
#define FF_API_DASH_MIN_SEG_DURATION (LIBAVFORMAT_VERSION_MAJOR < 59)
#endif
#ifndef FF_API_LAVF_MP4A_LATM
#define FF_API_LAVF_MP4A_LATM (LIBAVFORMAT_VERSION_MAJOR < 59)
#endif
#ifndef FF_API_R_FRAME_RATE