ffmpeg | branch: master | Erik Linge <eri...@axis.com> | Mon Sep 26 21:51:31 2022 +0200| [f566392f66d435223e2df017e4ebd7db084fd7a0] | committer: Marvin Scholz
libavformat/rtpdec_opus: add fmtp parsing of sprop-maxcapturerate Co-authored-by: Marvin Scholz <epira...@gmail.com> Signed-off-by: Marvin Scholz <epira...@gmail.com> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=f566392f66d435223e2df017e4ebd7db084fd7a0 --- libavformat/rtpdec_opus.c | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) diff --git a/libavformat/rtpdec_opus.c b/libavformat/rtpdec_opus.c index 1588f6d715..4ed9d8842b 100644 --- a/libavformat/rtpdec_opus.c +++ b/libavformat/rtpdec_opus.c @@ -1,6 +1,7 @@ /* * RTP Depacketization of Opus, RFC 7587 * Copyright (c) 2025 Jonathan Baudanza <j...@jonb.org> + * Copyright (c) 2022 Erik Linge * * This file is part of FFmpeg. * @@ -21,6 +22,7 @@ #include "libavcodec/bytestream.h" #include "libavutil/mem.h" +#include "libavutil/avstring.h" #include "rtpdec_formats.h" #include "internal.h" @@ -108,10 +110,42 @@ static int opus_parse_packet(AVFormatContext *ctx, PayloadContext *data, return 0; } +static int parse_fmtp(AVFormatContext *s, + AVStream *stream, PayloadContext *data, + const char *attr, const char *value) +{ + if (!strcmp(attr, "sprop-maxcapturerate")) { + int rate = atoi(value); + if (rate < 8000 || rate > 48000) { + av_log(s, AV_LOG_ERROR, + "fmtp field 'sprop-maxcapturerate' must be between 8000 to 48000 (provided value: %s)", + value); + return AVERROR_INVALIDDATA; + } + stream->codecpar->sample_rate = rate; + } + return 0; +} + +static int opus_parse_sdp_line(AVFormatContext *s, int st_index, + PayloadContext *data, const char *line) +{ + const char *p; + + if (st_index < 0) + return 0; + + if (av_strstart(line, "fmtp:", &p)) { + return ff_parse_fmtp(s, s->streams[st_index], data, p, parse_fmtp); + } + return 0; +} + const RTPDynamicProtocolHandler ff_opus_dynamic_handler = { .enc_name = "opus", .codec_type = AVMEDIA_TYPE_AUDIO, .codec_id = AV_CODEC_ID_OPUS, .parse_packet = opus_parse_packet, .init = opus_init, + .parse_sdp_a_line = opus_parse_sdp_line, }; _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".
