diff --git a/configure b/configure index e0b5bcf589..c34bdd13f5 100755 --- a/configure +++ b/configure @@ -3518,6 +3518,7 @@ caf_demuxer_select="iso_media" caf_muxer_select="iso_media" dash_muxer_select="mp4_muxer" dash_demuxer_deps="libxml2" +daud_muxer_select="pcm_rechunk_bsf" dirac_demuxer_select="dirac_parser" dts_demuxer_select="dca_parser" dtshd_demuxer_select="dca_parser" diff --git a/doc/muxers.texi b/doc/muxers.texi index a697e4b153..31249abd0b 100644 --- a/doc/muxers.texi +++ b/doc/muxers.texi @@ -1397,23 +1397,17 @@ D-Cinema audio muxer. It accepts a single 6-channels audio stream resampled at 96000 Hz encoded with the @samp{pcm_24daud} codec. -In addition, each muxed packet size must not be greater than 65535 bytes. - @subsection Example Use @command{ffmpeg} to mux input audio to a @samp{5.1} channel layout resampled at 96000Hz: @example -ffmpeg -i INPUT -af aresample=96000,pan=5.1,asetnsamples=3640 slow.302 +ffmpeg -i INPUT -af aresample=96000,pan=5.1 slow.302 @end example -The @samp{asetnsamples} filter is used to reduce the number of samples -of each audio packet, with a size computed according to the formula: -@example -65535 / (@var{channels} * @var{encoded_sample_size}) = 655535 / (6 * 3) = 3640 -@end example - -The @var{encoded_sample_size} = 3 factor is due to sample size of the -@samp{pcm_24daud} encoder. +For ffmpeg versions before 7.0 you might have to use the @samp{asetnsamples} +filter to limit the muxed packet size, because this format does not support +muxing packets larger than 65535 bytes (3640 samples). For newer ffmpeg +versions audio is automatically packetized to 36000 byte (2000 sample) packets. @section dv DV (Digital Video) muxer. diff --git a/libavformat/daudenc.c b/libavformat/daudenc.c index 37c20618bd..a995838351 100644 --- a/libavformat/daudenc.c +++ b/libavformat/daudenc.c @@ -25,6 +25,7 @@ static int daud_init(struct AVFormatContext *s) { AVCodecParameters *par = s->streams[0]->codecpar; + int ret; if (par->ch_layout.nb_channels != 6) { av_log(s, AV_LOG_ERROR, @@ -40,17 +41,15 @@ static int daud_init(struct AVFormatContext *s) return AVERROR(EINVAL); } + ret = ff_stream_add_bitstream_filter(s->streams[0], "pcm_rechunk", "n=2000:pad=0"); + if (ret < 0) + return ret; + return 0; } static int daud_write_packet(struct AVFormatContext *s, AVPacket *pkt) { - if (pkt->size > 65535) { - av_log(s, AV_LOG_ERROR, - "Packet size %d too large for s302m, must be <= 65535.\n", - pkt->size); - return AVERROR_INVALIDDATA; - } avio_wb16(s->pb, pkt->size); avio_wb16(s->pb, 0x8010); // unknown avio_write(s->pb, pkt->data, pkt->size); diff --git a/tests/ref/fate/dcinema-encode b/tests/ref/fate/dcinema-encode index 566d8f5091..8eec68901e 100644 --- a/tests/ref/fate/dcinema-encode +++ b/tests/ref/fate/dcinema-encode @@ -7,23 +7,14 @@ #sample_rate 0: 96000 #channel_layout_name 0: 5.1(side) #stream#, dts, pts, duration, size, hash -0, 0, 0, 1024, 12288, 848250bf0a20e324f60151629134ebd5 -0, 1024, 1024, 1024, 12288, cd3c42240d163a7e8835aeda9538f881 -0, 2048, 2048, 1024, 12288, f213a268e7ab62b53a4a4acb9b303dfb -0, 3072, 3072, 1024, 12288, 14d4f3289b057394abc995bfea58912a -0, 4096, 4096, 1024, 12288, a69453c3f0c23abfacb49b15aedc432a -0, 5120, 5120, 1024, 12288, 6578b4a89b1fa4c8897b1376974b685d -0, 6144, 6144, 1024, 12288, 4893b62addf1bea4c03c173f173aa082 -0, 7168, 7168, 1024, 12288, 992b70ea94c339dfda2d3514ac56c4a9 -0, 8192, 8192, 1024, 12288, 543f85139b77d30f8a46fd22d63e3ec7 -0, 9216, 9216, 1024, 12288, f52f825a2fe71f66786d5cd08487e271 -0, 10240, 10240, 1024, 12288, 50ac352cd73a803f52bfd393e610f83b -0, 11264, 11264, 1024, 12288, e9475a9a8794b9b0b912b855bc05001f -0, 12288, 12288, 1024, 12288, bf205474f44a381583b1f077ab8a9d0c -0, 13312, 13312, 1024, 12288, f5655b1da90d808c7e05b4bda02233ca -0, 14336, 14336, 1024, 12288, f8493bb74a270b50706cace85549c317 -0, 15360, 15360, 1024, 12288, c299fbbdcae68c97bca63210f6a1f7da -0, 16384, 16384, 1024, 12288, 2f263932e3d4c419853e3369d70ef8d9 -0, 17408, 17408, 1024, 12288, 09862736b8a1a1ce5c8d23814fb054cd -0, 18432, 18432, 1024, 12288, a99506638c5a3d84d3fa46ee2ba6c5ad -0, 19456, 19456, 1024, 12288, ab6f04f68cfbf2c9a89e9641604b3a50 +0, 0, 0, 2000, 24000, f7b7be0b72225eeaa98ec0b2ea7ad34d +0, 2000, 2000, 2000, 24000, c2d1d19b65f9ec1f7415bce5f2fbac8e +0, 4000, 4000, 2000, 24000, 461979d3566bc69cd4d1911ed1559191 +0, 6000, 6000, 2000, 24000, 8fe028dc7a9e5512b6c24d33cf76c4f6 +0, 8000, 8000, 2000, 24000, 8f7be8b0e562cc56110ee5de6b97bec3 +0, 10000, 10000, 2000, 24000, 53f053a72010471bd1a150af0873ec4a +0, 12000, 12000, 2000, 24000, adcfe7407ec384f65f384cfd85793963 +0, 14000, 14000, 2000, 24000, 4c541973df0e37a77eca16022d4d316c +0, 16000, 16000, 2000, 24000, 362d410570c821384e3ba30a03cdc907 +0, 18000, 18000, 2000, 24000, 00643563149102a4834841217a85d284 +0, 20000, 20000, 480, 5760, 7401d92e7105169bef3deb34e53e9605