Entries are sorted chronologically from oldest to youngest within each release,
releases are sorted from youngest to oldest.
-version 10:
-- av_strnstr
-- support ID3v2 tags in ASF files
+version <next>:
+- curves filter
- reference-counting for AVFrame and AVPacket data
-- avconv now fails when input options are used for output file
+- ffmpeg now fails when input options are used for output file
or vice versa
-- new avconv options -filter_script and -filter_complex_script, which allow a
+- support for Monkey's Audio versions from 3.93
+- perms and aperms filters
+- audio filtering support in ffplay
+- 10% faster aac encoding on x86 and MIPS
+- sine audio filter source
+- WebP demuxing and decoding support
+- new ffmpeg options -filter_script and -filter_complex_script, which allow a
filtergraph description to be read from a file
+- OpenCL support
+- audio phaser filter
+- separatefields filter
+- libquvi demuxer
- uniform options syntax across all filters
+- telecine filter
- new interlace filter
-- JPEG 2000 decoder
-- new asetpts filter (same as setpts, but for audio)
-- new trim and atrim filters
-- avconv -t and -ss (output-only) options are now sample-accurate when
+- smptehdbars source
+- inverse telecine filters (fieldmatch and decimate)
+- colorbalance filter
+- colorchannelmixer filter
+- The matroska demuxer can now output proper verbatim ASS packets. It will
+ become the default at the next libavformat major bump.
+- decent native animated GIF encoding
+- asetrate filter
+- interleave filter
+- timeline editing with filters
+- vidstabdetect and vidstabtransform filters for video stabilization using
+ the vid.stab library
+- astats filter
+- trim and atrim filters
+- ffmpeg -t and -ss (output-only) options are now sample-accurate when
transcoding audio
+ - Matroska muxer can now put the index at the beginning of the file.
-version 9:
-- av_basename and av_dirname
-- adobe and limelight publisher authentication in RTMP
+version 1.2:
+
- VDPAU hardware acceleration through normal hwaccel
- SRTP support
-
-
-version 9_beta3:
-- ashowinfo audio filter
+- Error diffusion dither in Swscale
+- Chained Ogg support
+- Theora Midstream reconfiguration support
+- EVRC decoder
+- audio fade filter
+- filtering audio with unknown channel layout
+- allpass, bass, bandpass, bandreject, biquad, equalizer, highpass, lowpass
+ and treble audio filter
+- improved showspectrum filter, with multichannel support and sox-like colors
+- histogram filter
+- tee muxer
+- il filter ported from libmpcodecs
+- support ID3v2 tags in ASF files
+- encrypted TTA stream decoding support
+- RF64 support in WAV muxer
+- noise filter ported from libmpcodecs
+- Subtitles character encoding conversion
+- blend filter
+- stereo3d filter ported from libmpcodecs
+
+
+version 1.1:
+
+- stream disposition information printing in ffprobe
+- filter for loudness analysis following EBU R128
+- Opus encoder using libopus
+- ffprobe -select_streams option
+- Pinnacle TARGA CineWave YUV16 decoder
+- TAK demuxer, decoder and parser
+- DTS-HD demuxer
+- remove -same_quant, it hasn't worked for years
+- FFM2 support
+- X-Face image encoder and decoder
- 24-bit FLAC encoding
-- audio volume filter
-- deprecated the avconv -vol option. the volume filter is to be used instead.
- multi-channel ALAC encoding up to 7.1
-- TAK demuxer, parser, and decoder
-- adaptive frame-level multithreading for H.264
-
-
-version 9_beta2:
- metadata (INFO tag) support in WAV muxer
+- subtitles raw text decoder
- support for building DLLs using MSVC
-- remove avserver daemon mode
+- LVF demuxer
+- ffescape tool
+- metadata (info chunk) support in CAF muxer
+- field filter ported from libmpcodecs
+- AVR demuxer
+- geq filter ported from libmpcodecs
+- remove ffserver daemon mode
+- AST muxer/demuxer
+- new expansion syntax for drawtext
+- BRender PIX image decoder
+- ffprobe -show_entries option
+- ffprobe -sections option
+- ADPCM IMA Dialogic decoder
+- BRSTM demuxer
+- animated GIF decoder and demuxer
+- PVF demuxer
+- subtitles filter
+- IRCAM muxer/demuxer
+- Paris Audio File demuxer
+- Virtual concatenation demuxer
+- VobSub demuxer
+- JSON captions for TED talks decoding support
+- SOX Resampler support in libswresample
+- aselect filter
+- SGI RLE 8-bit decoder
+- Silicon Graphics Motion Video Compressor 1 & 2 decoder
+- Silicon Graphics Movie demuxer
+- apad filter
+- Resolution & pixel format change support with multithreading for H.264
+- documentation split into per-component manuals
+- pp (postproc) filter ported from MPlayer
+- NIST Sphere demuxer
+- MPL2, VPlayer, MPlayer, AQTitle, PJS and SubViewer v1 subtitles demuxers and decoders
+- Sony Wave64 muxer
+- adobe and limelight publisher authentication in RTMP
+- data: URI scheme
- support building on the Plan 9 operating system
-- ffv1: support version 1.3
+- kerndeint filter ported from MPlayer
+- histeq filter ported from VirtualDub
+- Megalux Frame demuxer
+- 012v decoder
+- Improved AVC Intra decoding support
-version 9_beta1:
+version 1.0:
-- XWD encoder and decoder
-- Support for fragmentation in the mov/mp4 muxer
-- ISMV (Smooth Streaming) muxer
-- CDXL demuxer and decoder
-- Apple ProRes encoder
-- Sun Rasterfile Encoder
-- remove libpostproc
-- ID3v2 attached pictures reading and writing
-- WMA Lossless decoder
-- XBM encoder
-- RealAudio Lossless decoder
-- ZeroCodec decoder
-- drop support for avconv without libavfilter
-- add libavresample audio conversion library
-- audio filters support in libavfilter and avconv
-- add fps filter
-- audio split filter
-- audio mix filter
-- avprobe output is now standard INI or JSON. The old format can still
- be used with -of old.
+- INI and flat output in ffprobe
+- Scene detection in libavfilter
- Indeo Audio decoder
- channelsplit audio filter
+- setnsamples audio filter
+- atempo filter
+- ffprobe -show_data option
- RTMPT protocol support
- iLBC encoding/decoding via libilbc
- Microsoft Screen 1 decoder
For example a 3D WebM clip can be created using the following command line:
@example
-avconv -i sample_left_right_clip.mpg -an -c:v libvpx -metadata STEREO_MODE=left_right -y stereo_clip.webm
+ffmpeg -i sample_left_right_clip.mpg -an -c:v libvpx -metadata stereo_mode=left_right -y stereo_clip.webm
@end example
-@section segment
+ This muxer supports the following options:
+
+ @table @option
+
+ @item reserve_index_space
+ By default, this muxer writes the index for seeking (called cues in Matroska
+ terms) at the end of the file, because it cannot know in advance how much space
+ to leave for the index at the beginning of the file. However for some use cases
+ -- e.g. streaming where seeking is possible but slow -- it is useful to put the
+ index at the beginning of the file.
+
+ If this option is set to a non-zero value, the muxer will reserve a given amount
+ of space in the file header and then try to write the cues there when the muxing
+ finishes. If the available space does not suffice, muxing will fail. A safe size
+ for most use cases should be about 50kB per hour of video.
+
+ Note that cues are only written if the output is seekable and this option will
+ have no effect if it is not.
+
+ @end table
+
+@section segment, stream_segment, ssegment
Basic stream segmenter.
#include "libavutil/intreadwrite.h"
#include "libavutil/lfg.h"
#include "libavutil/mathematics.h"
+ #include "libavutil/opt.h"
#include "libavutil/random_seed.h"
#include "libavutil/samplefmt.h"
+#include "libavutil/sha.h"
#include "libavcodec/xiph.h"
#include "libavcodec/mpeg4audio.h"
if (mkv->cues == NULL)
return AVERROR(ENOMEM);
+ if (pb->seekable && mkv->reserve_cues_space) {
+ mkv->cues_pos = avio_tell(pb);
+ put_ebml_void(pb, mkv->reserve_cues_space);
+ }
+
av_init_packet(&mkv->cur_audio_pkt);
mkv->cur_audio_pkt.size = 0;
+ mkv->cluster_pos = -1;
avio_flush(pb);
return 0;
if (pb->seekable) {
if (mkv->cues->num_entries) {
- cuespos = mkv_write_cues(pb, mkv->cues, mkv->tracks, s->nb_streams);
+ if (mkv->reserve_cues_space) {
+ int64_t cues_end;
+
+ currentpos = avio_tell(pb);
+ avio_seek(pb, mkv->cues_pos, SEEK_SET);
+
- cuespos = mkv_write_cues(pb, mkv->cues, s->nb_streams);
++ cuespos = mkv_write_cues(pb, mkv->cues, mkv->tracks, s->nb_streams);
+ cues_end = avio_tell(pb);
+ if (cues_end > cuespos + mkv->reserve_cues_space) {
+ av_log(s, AV_LOG_ERROR, "Insufficient space reserved for cues: %d "
+ "(needed: %"PRId64").\n", mkv->reserve_cues_space,
+ cues_end - cuespos);
+ return AVERROR(EINVAL);
+ }
+
+ if (cues_end < cuespos + mkv->reserve_cues_space)
+ put_ebml_void(pb, mkv->reserve_cues_space - (cues_end - cuespos));
+
+ avio_seek(pb, currentpos, SEEK_SET);
+ } else {
- cuespos = mkv_write_cues(pb, mkv->cues, s->nb_streams);
++ cuespos = mkv_write_cues(pb, mkv->cues, mkv->tracks, s->nb_streams);
+ }
ret = mkv_add_seekhead_entry(mkv->main_seekhead, MATROSKA_ID_CUES, cuespos);
if (ret < 0) return ret;
return 0;
}
+const AVCodecTag additional_audio_tags[] = {
+ { AV_CODEC_ID_ALAC, 0XFFFFFFFF },
+ { AV_CODEC_ID_EAC3, 0XFFFFFFFF },
+ { AV_CODEC_ID_MLP, 0xFFFFFFFF },
+ { AV_CODEC_ID_OPUS, 0xFFFFFFFF },
+ { AV_CODEC_ID_PCM_S16BE, 0xFFFFFFFF },
+ { AV_CODEC_ID_PCM_S24BE, 0xFFFFFFFF },
+ { AV_CODEC_ID_PCM_S32BE, 0xFFFFFFFF },
+ { AV_CODEC_ID_QDM2, 0xFFFFFFFF },
+ { AV_CODEC_ID_RA_144, 0xFFFFFFFF },
+ { AV_CODEC_ID_RA_288, 0xFFFFFFFF },
+ { AV_CODEC_ID_COOK, 0xFFFFFFFF },
+ { AV_CODEC_ID_TRUEHD, 0xFFFFFFFF },
+ { AV_CODEC_ID_WAVPACK, 0xFFFFFFFF },
+ { AV_CODEC_ID_NONE, 0xFFFFFFFF }
+};
+
+const AVCodecTag additional_video_tags[] = {
+ { AV_CODEC_ID_PRORES, 0xFFFFFFFF },
+ { AV_CODEC_ID_RV10, 0xFFFFFFFF },
+ { AV_CODEC_ID_RV20, 0xFFFFFFFF },
+ { AV_CODEC_ID_RV30, 0xFFFFFFFF },
+ { AV_CODEC_ID_RV40, 0xFFFFFFFF },
+ { AV_CODEC_ID_VP9, 0xFFFFFFFF },
+ { AV_CODEC_ID_NONE, 0xFFFFFFFF }
+};
+
+ #define OFFSET(x) offsetof(MatroskaMuxContext, x)
+ #define FLAGS AV_OPT_FLAG_ENCODING_PARAM
+ static const AVOption options[] = {
+ { "reserve_index_space", "Reserve a given amount of space (in bytes) at the beginning "
+ "of the file for the index (cues).", OFFSET(reserve_cues_space), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, FLAGS },
+ { NULL },
+ };
+
#if CONFIG_MATROSKA_MUXER
+ static const AVClass matroska_class = {
+ .class_name = "matroska muxer",
+ .item_name = av_default_item_name,
+ .option = options,
+ .version = LIBAVUTIL_VERSION_INT,
+ };
+
AVOutputFormat ff_matroska_muxer = {
.name = "matroska",
.long_name = NULL_IF_CONFIG_SMALL("Matroska"),
.flags = AVFMT_GLOBALHEADER | AVFMT_VARIABLE_FPS |
AVFMT_TS_NONSTRICT,
.codec_tag = (const AVCodecTag* const []){
- ff_codec_bmp_tags, ff_codec_wav_tags, 0
+ ff_codec_bmp_tags, ff_codec_wav_tags,
+ additional_audio_tags, additional_video_tags, 0
},
+#if FF_API_ASS_SSA
.subtitle_codec = AV_CODEC_ID_SSA,
+#else
+ .subtitle_codec = AV_CODEC_ID_ASS,
+#endif
.query_codec = mkv_query_codec,
+ .priv_class = &matroska_class,
};
#endif
.write_packet = mkv_write_packet,
.write_trailer = mkv_write_trailer,
.flags = AVFMT_GLOBALHEADER | AVFMT_TS_NONSTRICT,
- .codec_tag = (const AVCodecTag* const []){ ff_codec_wav_tags, 0 },
+ .codec_tag = (const AVCodecTag* const []){
+ ff_codec_wav_tags, additional_audio_tags, 0
+ },
+ .priv_class = &mka_class,
};
#endif
#include "libavutil/avutil.h"
#define LIBAVFORMAT_VERSION_MAJOR 55
-#define LIBAVFORMAT_VERSION_MINOR 0
-#define LIBAVFORMAT_VERSION_MICRO 1
+#define LIBAVFORMAT_VERSION_MINOR 4
- #define LIBAVFORMAT_VERSION_MICRO 100
++#define LIBAVFORMAT_VERSION_MICRO 101
#define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \
LIBAVFORMAT_VERSION_MINOR, \
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