X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavformat%2Fmatroskaenc.c;h=4504d295eaf3f0837091ac71e5fcffdc3fdd7395;hb=ccc10acb5b941973acab49d64459bb110cc0a529;hp=9346e9c84e0526a5236c9fb373ef2f65b7a20beb;hpb=5972945197d44e8bde6a986b9cba2e8196cfbc9c;p=ffmpeg diff --git a/libavformat/matroskaenc.c b/libavformat/matroskaenc.c index 9346e9c84e0..4504d295eaf 100644 --- a/libavformat/matroskaenc.c +++ b/libavformat/matroskaenc.c @@ -2,34 +2,44 @@ * Matroska muxer * Copyright (c) 2007 David Conrad * - * This file is part of FFmpeg. + * This file is part of Libav. * - * FFmpeg is free software; you can redistribute it and/or + * Libav is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * - * FFmpeg is distributed in the hope that it will be useful, + * Libav is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public - * License along with FFmpeg; if not, write to the Free Software + * License along with Libav; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include "avformat.h" +#include "internal.h" #include "riff.h" #include "isom.h" #include "matroska.h" #include "avc.h" -#include "libavutil/md5.h" +#include "flacenc.h" +#include "avlanguage.h" +#include "libavutil/samplefmt.h" +#include "libavutil/intreadwrite.h" +#include "libavutil/intfloat.h" +#include "libavutil/mathematics.h" +#include "libavutil/random_seed.h" +#include "libavutil/lfg.h" +#include "libavutil/dict.h" +#include "libavutil/avstring.h" #include "libavcodec/xiph.h" #include "libavcodec/mpeg4audio.h" typedef struct ebml_master { - offset_t pos; ///< absolute offset in the file where the master's elements start + int64_t pos; ///< absolute offset in the file where the master's elements start int sizebytes; ///< how many bytes were reserved for the size } ebml_master; @@ -39,8 +49,8 @@ typedef struct mkv_seekhead_entry { } mkv_seekhead_entry; typedef struct mkv_seekhead { - offset_t filepos; - offset_t segment_offset; ///< the file offset to the beginning of the segment + int64_t filepos; + int64_t segment_offset; ///< the file offset to the beginning of the segment int reserved_size; ///< -1 if appending to file int max_entries; mkv_seekhead_entry *entries; @@ -50,29 +60,40 @@ typedef struct mkv_seekhead { typedef struct { uint64_t pts; int tracknum; - offset_t cluster_pos; ///< file offset of the cluster containing the block + int64_t cluster_pos; ///< file offset of the cluster containing the block } mkv_cuepoint; typedef struct { - offset_t segment_offset; + int64_t segment_offset; mkv_cuepoint *entries; int num_entries; } mkv_cues; +typedef struct { + int write_dts; +} mkv_track; + +#define MODE_MATROSKAv2 0x01 +#define MODE_WEBM 0x02 + typedef struct MatroskaMuxContext { + int mode; + AVIOContext *dyn_bc; ebml_master segment; - offset_t segment_offset; - offset_t segment_uid; + int64_t segment_offset; ebml_master cluster; - offset_t cluster_pos; ///< file offset of the current cluster - uint64_t cluster_pts; - offset_t duration_offset; - uint64_t duration; + int64_t cluster_pos; ///< file offset of the current cluster + int64_t cluster_pts; + int64_t duration_offset; + int64_t duration; mkv_seekhead *main_seekhead; - mkv_seekhead *cluster_seekhead; mkv_cues *cues; + mkv_track *tracks; + + unsigned int audio_buffer_size; + AVPacket cur_audio_pkt; - struct AVMD5 *md5_ctx; + int have_attachments; } MatroskaMuxContext; @@ -93,11 +114,11 @@ static int ebml_id_size(unsigned int id) return (av_log2(id+1)-1)/7+1; } -static void put_ebml_id(ByteIOContext *pb, unsigned int id) +static void put_ebml_id(AVIOContext *pb, unsigned int id) { int i = ebml_id_size(id); while (i--) - put_byte(pb, id >> (i*8)); + avio_w8(pb, id >> (i*8)); } /** @@ -105,12 +126,12 @@ static void put_ebml_id(ByteIOContext *pb, unsigned int id) * * @param bytes The number of bytes the size should occupy (maximum: 8). */ -static void put_ebml_size_unknown(ByteIOContext *pb, int bytes) +static void put_ebml_size_unknown(AVIOContext *pb, int bytes) { assert(bytes <= 8); - put_byte(pb, 0x1ff >> bytes); + avio_w8(pb, 0x1ff >> bytes); while (--bytes) - put_byte(pb, 0xff); + avio_w8(pb, 0xff); } /** @@ -129,7 +150,7 @@ static int ebml_num_size(uint64_t num) * @param bytes The number of bytes that need to be used to write the number. * If zero, any number of bytes can be used. */ -static void put_ebml_num(ByteIOContext *pb, uint64_t num, int bytes) +static void put_ebml_num(AVIOContext *pb, uint64_t num, int bytes) { int i, needed_bytes = ebml_num_size(num); @@ -145,10 +166,10 @@ static void put_ebml_num(ByteIOContext *pb, uint64_t num, int bytes) num |= 1ULL << bytes*7; for (i = bytes - 1; i >= 0; i--) - put_byte(pb, num >> i*8); + avio_w8(pb, num >> i*8); } -static void put_ebml_uint(ByteIOContext *pb, unsigned int elementid, uint64_t val) +static void put_ebml_uint(AVIOContext *pb, unsigned int elementid, uint64_t val) { int i, bytes = 1; uint64_t tmp = val; @@ -157,38 +178,38 @@ static void put_ebml_uint(ByteIOContext *pb, unsigned int elementid, uint64_t va put_ebml_id(pb, elementid); put_ebml_num(pb, bytes, 0); for (i = bytes - 1; i >= 0; i--) - put_byte(pb, val >> i*8); + avio_w8(pb, val >> i*8); } -static void put_ebml_float(ByteIOContext *pb, unsigned int elementid, double val) +static void put_ebml_float(AVIOContext *pb, unsigned int elementid, double val) { put_ebml_id(pb, elementid); put_ebml_num(pb, 8, 0); - put_be64(pb, av_dbl2int(val)); + avio_wb64(pb, av_double2int(val)); } -static void put_ebml_binary(ByteIOContext *pb, unsigned int elementid, - const uint8_t *buf, int size) +static void put_ebml_binary(AVIOContext *pb, unsigned int elementid, + const void *buf, int size) { put_ebml_id(pb, elementid); put_ebml_num(pb, size, 0); - put_buffer(pb, buf, size); + avio_write(pb, buf, size); } -static void put_ebml_string(ByteIOContext *pb, unsigned int elementid, const char *str) +static void put_ebml_string(AVIOContext *pb, unsigned int elementid, const char *str) { put_ebml_binary(pb, elementid, str, strlen(str)); } /** - * Writes a void element of a given size. Useful for reserving space in + * Write a void element of a given size. Useful for reserving space in * the file to be written to later. * * @param size The number of bytes to reserve, which must be at least 2. */ -static void put_ebml_void(ByteIOContext *pb, uint64_t size) +static void put_ebml_void(AVIOContext *pb, uint64_t size) { - offset_t currentpos = url_ftell(pb); + int64_t currentpos = avio_tell(pb); assert(size >= 2); @@ -200,37 +221,34 @@ static void put_ebml_void(ByteIOContext *pb, uint64_t size) put_ebml_num(pb, size-1, 0); else put_ebml_num(pb, size-9, 8); - while(url_ftell(pb) < currentpos + size) - put_byte(pb, 0); + while(avio_tell(pb) < currentpos + size) + avio_w8(pb, 0); } -static ebml_master start_ebml_master(ByteIOContext *pb, unsigned int elementid, uint64_t expectedsize) +static ebml_master start_ebml_master(AVIOContext *pb, unsigned int elementid, uint64_t expectedsize) { int bytes = expectedsize ? ebml_num_size(expectedsize) : 8; put_ebml_id(pb, elementid); put_ebml_size_unknown(pb, bytes); - return (ebml_master){ url_ftell(pb), bytes }; + return (ebml_master){ avio_tell(pb), bytes }; } -static void end_ebml_master(ByteIOContext *pb, ebml_master master) +static void end_ebml_master(AVIOContext *pb, ebml_master master) { - offset_t pos = url_ftell(pb); + int64_t pos = avio_tell(pb); - // leave the unknown size for masters when streaming - if (url_is_streamed(pb)) + if (avio_seek(pb, master.pos - master.sizebytes, SEEK_SET) < 0) return; - - url_fseek(pb, master.pos - master.sizebytes, SEEK_SET); put_ebml_num(pb, pos - master.pos, master.sizebytes); - url_fseek(pb, pos, SEEK_SET); + avio_seek(pb, pos, SEEK_SET); } -static void put_xiph_size(ByteIOContext *pb, int size) +static void put_xiph_size(AVIOContext *pb, int size) { int i; for (i = 0; i < size / 255; i++) - put_byte(pb, 255); - put_byte(pb, size % 255); + avio_w8(pb, 255); + avio_w8(pb, size % 255); } /** @@ -244,7 +262,7 @@ static void put_xiph_size(ByteIOContext *pb, int size) * @param numelements The maximum number of elements that will be indexed * by this seek head, 0 if unlimited. */ -static mkv_seekhead * mkv_start_seekhead(ByteIOContext *pb, offset_t segment_offset, int numelements) +static mkv_seekhead * mkv_start_seekhead(AVIOContext *pb, int64_t segment_offset, int numelements) { mkv_seekhead *new_seekhead = av_mallocz(sizeof(mkv_seekhead)); if (new_seekhead == NULL) @@ -253,7 +271,7 @@ static mkv_seekhead * mkv_start_seekhead(ByteIOContext *pb, offset_t segment_off new_seekhead->segment_offset = segment_offset; if (numelements > 0) { - new_seekhead->filepos = url_ftell(pb); + new_seekhead->filepos = avio_tell(pb); // 21 bytes max for a seek entry, 10 bytes max for the SeekHead ID // and size, and 3 bytes to guarantee that an EBML void element // will fit afterwards @@ -289,18 +307,23 @@ static int mkv_add_seekhead_entry(mkv_seekhead *seekhead, unsigned int elementid * be written at the location reserved for it. Otherwise, it is written * at the current location in the file. * - * @return The file offset where the seekhead was written. + * @return The file offset where the seekhead was written, + * -1 if an error occurred. */ -static offset_t mkv_write_seekhead(ByteIOContext *pb, mkv_seekhead *seekhead) +static int64_t mkv_write_seekhead(AVIOContext *pb, mkv_seekhead *seekhead) { ebml_master metaseek, seekentry; - offset_t currentpos; + int64_t currentpos; int i; - currentpos = url_ftell(pb); + currentpos = avio_tell(pb); - if (seekhead->reserved_size > 0) - url_fseek(pb, seekhead->filepos, SEEK_SET); + if (seekhead->reserved_size > 0) { + if (avio_seek(pb, seekhead->filepos, SEEK_SET) < 0) { + currentpos = -1; + goto fail; + } + } metaseek = start_ebml_master(pb, MATROSKA_ID_SEEKHEAD, seekhead->reserved_size); for (i = 0; i < seekhead->num_entries; i++) { @@ -318,19 +341,20 @@ static offset_t mkv_write_seekhead(ByteIOContext *pb, mkv_seekhead *seekhead) end_ebml_master(pb, metaseek); if (seekhead->reserved_size > 0) { - uint64_t remaining = seekhead->filepos + seekhead->reserved_size - url_ftell(pb); + uint64_t remaining = seekhead->filepos + seekhead->reserved_size - avio_tell(pb); put_ebml_void(pb, remaining); - url_fseek(pb, currentpos, SEEK_SET); + avio_seek(pb, currentpos, SEEK_SET); currentpos = seekhead->filepos; } +fail: av_free(seekhead->entries); av_free(seekhead); return currentpos; } -static mkv_cues * mkv_start_cues(offset_t segment_offset) +static mkv_cues * mkv_start_cues(int64_t segment_offset) { mkv_cues *cues = av_mallocz(sizeof(mkv_cues)); if (cues == NULL) @@ -340,7 +364,7 @@ static mkv_cues * mkv_start_cues(offset_t segment_offset) return cues; } -static int mkv_add_cuepoint(mkv_cues *cues, AVPacket *pkt, offset_t cluster_pos) +static int mkv_add_cuepoint(mkv_cues *cues, int stream, int64_t ts, int64_t cluster_pos) { mkv_cuepoint *entries = cues->entries; @@ -348,21 +372,24 @@ static int mkv_add_cuepoint(mkv_cues *cues, AVPacket *pkt, offset_t cluster_pos) if (entries == NULL) return AVERROR(ENOMEM); - entries[cues->num_entries ].pts = pkt->pts; - entries[cues->num_entries ].tracknum = pkt->stream_index + 1; + if (ts < 0) + return 0; + + entries[cues->num_entries ].pts = ts; + entries[cues->num_entries ].tracknum = stream + 1; entries[cues->num_entries++].cluster_pos = cluster_pos - cues->segment_offset; cues->entries = entries; return 0; } -static offset_t mkv_write_cues(ByteIOContext *pb, mkv_cues *cues, int num_tracks) +static int64_t mkv_write_cues(AVIOContext *pb, mkv_cues *cues, int num_tracks) { ebml_master cues_element; - offset_t currentpos; + int64_t currentpos; int i, j; - currentpos = url_ftell(pb); + currentpos = avio_tell(pb); cues_element = start_ebml_master(pb, MATROSKA_ID_CUES, 0); for (i = 0; i < cues->num_entries; i++) { @@ -386,12 +413,10 @@ static offset_t mkv_write_cues(ByteIOContext *pb, mkv_cues *cues, int num_tracks } end_ebml_master(pb, cues_element); - av_free(cues->entries); - av_free(cues); return currentpos; } -static int put_xiph_codecpriv(AVFormatContext *s, ByteIOContext *pb, AVCodecContext *codec) +static int put_xiph_codecpriv(AVFormatContext *s, AVIOContext *pb, AVCodecContext *codec) { uint8_t *header_start[3]; int header_len[3]; @@ -403,78 +428,43 @@ static int put_xiph_codecpriv(AVFormatContext *s, ByteIOContext *pb, AVCodecCont else first_header_size = 42; - if (ff_split_xiph_headers(codec->extradata, codec->extradata_size, + if (avpriv_split_xiph_headers(codec->extradata, codec->extradata_size, first_header_size, header_start, header_len) < 0) { av_log(s, AV_LOG_ERROR, "Extradata corrupt.\n"); return -1; } - put_byte(pb, 2); // number packets - 1 + avio_w8(pb, 2); // number packets - 1 for (j = 0; j < 2; j++) { put_xiph_size(pb, header_len[j]); } for (j = 0; j < 3; j++) - put_buffer(pb, header_start[j], header_len[j]); - - return 0; -} - -#define FLAC_STREAMINFO_SIZE 34 + avio_write(pb, header_start[j], header_len[j]); -static int put_flac_codecpriv(AVFormatContext *s, ByteIOContext *pb, AVCodecContext *codec) -{ - // if the extradata_size is greater than FLAC_STREAMINFO_SIZE, - // assume that it's in Matroska format already - if (codec->extradata_size < FLAC_STREAMINFO_SIZE) { - av_log(s, AV_LOG_ERROR, "Invalid FLAC extradata\n"); - return -1; - } else if (codec->extradata_size == FLAC_STREAMINFO_SIZE) { - // only the streaminfo packet - put_buffer(pb, "fLaC", 4); - put_byte(pb, 0x80); - put_be24(pb, FLAC_STREAMINFO_SIZE); - } else if(memcmp("fLaC", codec->extradata, 4)) { - av_log(s, AV_LOG_ERROR, "Invalid FLAC extradata\n"); - return -1; - } - put_buffer(pb, codec->extradata, codec->extradata_size); return 0; } static void get_aac_sample_rates(AVFormatContext *s, AVCodecContext *codec, int *sample_rate, int *output_sample_rate) { - int sri; - - if (codec->extradata_size < 2) { - av_log(s, AV_LOG_WARNING, "No AAC extradata, unable to determine samplerate.\n"); - return; - } + MPEG4AudioConfig mp4ac; - sri = ((codec->extradata[0] << 1) & 0xE) | (codec->extradata[1] >> 7); - if (sri > 12) { - av_log(s, AV_LOG_WARNING, "AAC samplerate index out of bounds\n"); + if (avpriv_mpeg4audio_get_config(&mp4ac, codec->extradata, + codec->extradata_size * 8, 1) < 0) { + av_log(s, AV_LOG_WARNING, "Error parsing AAC extradata, unable to determine samplerate.\n"); return; } - *sample_rate = ff_mpeg4audio_sample_rates[sri]; - // if sbr, get output sample rate as well - if (codec->extradata_size == 5) { - sri = (codec->extradata[4] >> 3) & 0xF; - if (sri > 12) { - av_log(s, AV_LOG_WARNING, "AAC output samplerate index out of bounds\n"); - return; - } - *output_sample_rate = ff_mpeg4audio_sample_rates[sri]; - } + *sample_rate = mp4ac.sample_rate; + *output_sample_rate = mp4ac.ext_sample_rate; } -static int mkv_write_codecprivate(AVFormatContext *s, ByteIOContext *pb, AVCodecContext *codec, int native_id, int qt_id) +static int mkv_write_codecprivate(AVFormatContext *s, AVIOContext *pb, AVCodecContext *codec, int native_id, int qt_id) { - ByteIOContext *dyn_cp; + AVIOContext *dyn_cp; uint8_t *codecpriv; int ret, codecpriv_size; - ret = url_open_dyn_buf(&dyn_cp); + ret = avio_open_dyn_buf(&dyn_cp); if(ret < 0) return ret; @@ -482,40 +472,42 @@ static int mkv_write_codecprivate(AVFormatContext *s, ByteIOContext *pb, AVCodec if (codec->codec_id == CODEC_ID_VORBIS || codec->codec_id == CODEC_ID_THEORA) ret = put_xiph_codecpriv(s, dyn_cp, codec); else if (codec->codec_id == CODEC_ID_FLAC) - ret = put_flac_codecpriv(s, dyn_cp, codec); + ret = ff_flac_write_header(dyn_cp, codec, 1); else if (codec->codec_id == CODEC_ID_H264) ret = ff_isom_write_avcc(dyn_cp, codec->extradata, codec->extradata_size); else if (codec->extradata_size) - put_buffer(dyn_cp, codec->extradata, codec->extradata_size); - } else if (codec->codec_type == CODEC_TYPE_VIDEO) { + avio_write(dyn_cp, codec->extradata, codec->extradata_size); + } else if (codec->codec_type == AVMEDIA_TYPE_VIDEO) { if (qt_id) { if (!codec->codec_tag) - codec->codec_tag = codec_get_tag(codec_movvideo_tags, codec->codec_id); + codec->codec_tag = ff_codec_get_tag(ff_codec_movvideo_tags, codec->codec_id); if (codec->extradata_size) - put_buffer(dyn_cp, codec->extradata, codec->extradata_size); + avio_write(dyn_cp, codec->extradata, codec->extradata_size); } else { - if (!codec->codec_tag) - codec->codec_tag = codec_get_tag(codec_bmp_tags, codec->codec_id); - if (!codec->codec_tag) { - av_log(s, AV_LOG_ERROR, "No bmp codec ID found."); - ret = -1; - } + if (!codec->codec_tag) + codec->codec_tag = ff_codec_get_tag(ff_codec_bmp_tags, codec->codec_id); + if (!codec->codec_tag) { + av_log(s, AV_LOG_ERROR, "No bmp codec ID found.\n"); + ret = -1; + } - put_bmp_header(dyn_cp, codec, codec_bmp_tags, 0); + ff_put_bmp_header(dyn_cp, codec, ff_codec_bmp_tags, 0); } - } else if (codec->codec_type == CODEC_TYPE_AUDIO) { - if (!codec->codec_tag) - codec->codec_tag = codec_get_tag(codec_wav_tags, codec->codec_id); - if (!codec->codec_tag) { - av_log(s, AV_LOG_ERROR, "No wav codec ID found."); + } else if (codec->codec_type == AVMEDIA_TYPE_AUDIO) { + unsigned int tag; + tag = ff_codec_get_tag(ff_codec_wav_tags, codec->codec_id); + if (!tag) { + av_log(s, AV_LOG_ERROR, "No wav codec ID found.\n"); ret = -1; } + if (!codec->codec_tag) + codec->codec_tag = tag; - put_wav_header(dyn_cp, codec); + ff_put_wav_header(dyn_cp, codec); } - codecpriv_size = url_close_dyn_buf(dyn_cp, &codecpriv); + codecpriv_size = avio_close_dyn_buf(dyn_cp, &codecpriv); if (codecpriv_size) put_ebml_binary(pb, MATROSKA_ID_CODECPRIVATE, codecpriv, codecpriv_size); av_free(codecpriv); @@ -525,11 +517,11 @@ static int mkv_write_codecprivate(AVFormatContext *s, ByteIOContext *pb, AVCodec static int mkv_write_tracks(AVFormatContext *s) { MatroskaMuxContext *mkv = s->priv_data; - ByteIOContext *pb = s->pb; + AVIOContext *pb = s->pb; ebml_master tracks; int i, j, ret; - ret = mkv_add_seekhead_entry(mkv->main_seekhead, MATROSKA_ID_TRACKS, url_ftell(pb)); + ret = mkv_add_seekhead_entry(mkv->main_seekhead, MATROSKA_ID_TRACKS, avio_tell(pb)); if (ret < 0) return ret; tracks = start_ebml_master(pb, MATROSKA_ID_TRACKS, 0); @@ -542,9 +534,15 @@ static int mkv_write_tracks(AVFormatContext *s) int bit_depth = av_get_bits_per_sample(codec->codec_id); int sample_rate = codec->sample_rate; int output_sample_rate = 0; + AVDictionaryEntry *tag; + + if (codec->codec_type == AVMEDIA_TYPE_ATTACHMENT) { + mkv->have_attachments = 1; + continue; + } if (!bit_depth) - bit_depth = av_get_bits_per_sample_format(codec->sample_fmt); + bit_depth = av_get_bytes_per_sample(codec->sample_fmt) << 3; if (codec->codec_id == CODEC_ID_AAC) get_aac_sample_rates(s, codec, &sample_rate, &output_sample_rate); @@ -554,12 +552,13 @@ static int mkv_write_tracks(AVFormatContext *s) put_ebml_uint (pb, MATROSKA_ID_TRACKUID , i + 1); put_ebml_uint (pb, MATROSKA_ID_TRACKFLAGLACING , 0); // no lacing (yet) - if (st->language[0]) - put_ebml_string(pb, MATROSKA_ID_TRACKLANGUAGE, st->language); - else - put_ebml_string(pb, MATROSKA_ID_TRACKLANGUAGE, "und"); + if ((tag = av_dict_get(st->metadata, "title", NULL, 0))) + put_ebml_string(pb, MATROSKA_ID_TRACKNAME, tag->value); + tag = av_dict_get(st->metadata, "language", NULL, 0); + put_ebml_string(pb, MATROSKA_ID_TRACKLANGUAGE, tag ? tag->value:"und"); - put_ebml_uint(pb, MATROSKA_ID_TRACKFLAGDEFAULT, !!(st->disposition & AV_DISPOSITION_DEFAULT)); + if (st->disposition) + put_ebml_uint(pb, MATROSKA_ID_TRACKFLAGDEFAULT, !!(st->disposition & AV_DISPOSITION_DEFAULT)); // look for a codec ID string specific to mkv to use, // if none are found, use AVI codes @@ -571,13 +570,21 @@ static int mkv_write_tracks(AVFormatContext *s) } } + if (mkv->mode == MODE_WEBM && !(codec->codec_id == CODEC_ID_VP8 || + codec->codec_id == CODEC_ID_VORBIS)) { + av_log(s, AV_LOG_ERROR, + "Only VP8 video and Vorbis audio are supported for WebM.\n"); + return AVERROR(EINVAL); + } + switch (codec->codec_type) { - case CODEC_TYPE_VIDEO: + case AVMEDIA_TYPE_VIDEO: put_ebml_uint(pb, MATROSKA_ID_TRACKTYPE, MATROSKA_TRACK_TYPE_VIDEO); + put_ebml_uint(pb, MATROSKA_ID_TRACKDEFAULTDURATION, av_q2d(codec->time_base)*1E9); if (!native_id && - codec_get_tag(codec_movvideo_tags, codec->codec_id) && - (!codec_get_tag(codec_bmp_tags, codec->codec_id) + ff_codec_get_tag(ff_codec_movvideo_tags, codec->codec_id) && + (!ff_codec_get_tag(ff_codec_bmp_tags, codec->codec_id) || codec->codec_id == CODEC_ID_SVQ1 || codec->codec_id == CODEC_ID_SVQ3 || codec->codec_id == CODEC_ID_CINEPAK)) @@ -585,23 +592,45 @@ static int mkv_write_tracks(AVFormatContext *s) if (qt_id) put_ebml_string(pb, MATROSKA_ID_CODECID, "V_QUICKTIME"); - else if (!native_id) + else if (!native_id) { // if there is no mkv-specific codec ID, use VFW mode put_ebml_string(pb, MATROSKA_ID_CODECID, "V_MS/VFW/FOURCC"); + mkv->tracks[i].write_dts = 1; + } subinfo = start_ebml_master(pb, MATROSKA_ID_TRACKVIDEO, 0); // XXX: interlace flag? put_ebml_uint (pb, MATROSKA_ID_VIDEOPIXELWIDTH , codec->width); put_ebml_uint (pb, MATROSKA_ID_VIDEOPIXELHEIGHT, codec->height); + if ((tag = av_dict_get(s->metadata, "stereo_mode", NULL, 0))) { + uint8_t stereo_fmt = atoi(tag->value); + int valid_fmt = 0; + + switch (mkv->mode) { + case MODE_WEBM: + if (stereo_fmt <= MATROSKA_VIDEO_STEREOMODE_TYPE_TOP_BOTTOM + || stereo_fmt == MATROSKA_VIDEO_STEREOMODE_TYPE_RIGHT_LEFT) + valid_fmt = 1; + break; + case MODE_MATROSKAv2: + if (stereo_fmt <= MATROSKA_VIDEO_STEREOMODE_TYPE_BOTH_EYES_BLOCK_RL) + valid_fmt = 1; + break; + } + + if (valid_fmt) + put_ebml_uint (pb, MATROSKA_ID_VIDEOSTEREOMODE, stereo_fmt); + } if (st->sample_aspect_ratio.num) { int d_width = codec->width*av_q2d(st->sample_aspect_ratio); put_ebml_uint(pb, MATROSKA_ID_VIDEODISPLAYWIDTH , d_width); put_ebml_uint(pb, MATROSKA_ID_VIDEODISPLAYHEIGHT, codec->height); + put_ebml_uint(pb, MATROSKA_ID_VIDEODISPLAYUNIT, 3); } end_ebml_master(pb, subinfo); break; - case CODEC_TYPE_AUDIO: + case AVMEDIA_TYPE_AUDIO: put_ebml_uint(pb, MATROSKA_ID_TRACKTYPE, MATROSKA_TRACK_TYPE_AUDIO); if (!native_id) @@ -618,11 +647,15 @@ static int mkv_write_tracks(AVFormatContext *s) end_ebml_master(pb, subinfo); break; - case CODEC_TYPE_SUBTITLE: + case AVMEDIA_TYPE_SUBTITLE: put_ebml_uint(pb, MATROSKA_ID_TRACKTYPE, MATROSKA_TRACK_TYPE_SUBTITLE); + if (!native_id) { + av_log(s, AV_LOG_ERROR, "Subtitle codec %d is not supported.\n", codec->codec_id); + return AVERROR(ENOSYS); + } break; default: - av_log(s, AV_LOG_ERROR, "Only audio, video, and subtitles are supported for Matroska."); + av_log(s, AV_LOG_ERROR, "Only audio, video, and subtitles are supported for Matroska.\n"); break; } ret = mkv_write_codecprivate(s, pb, codec, native_id, qt_id); @@ -631,34 +664,241 @@ static int mkv_write_tracks(AVFormatContext *s) end_ebml_master(pb, track); // ms precision is the de-facto standard timescale for mkv files - av_set_pts_info(st, 64, 1, 1000); + avpriv_set_pts_info(st, 64, 1, 1000); } end_ebml_master(pb, tracks); return 0; } +static int mkv_write_chapters(AVFormatContext *s) +{ + MatroskaMuxContext *mkv = s->priv_data; + AVIOContext *pb = s->pb; + ebml_master chapters, editionentry; + AVRational scale = {1, 1E9}; + int i, ret; + + if (!s->nb_chapters) + return 0; + + ret = mkv_add_seekhead_entry(mkv->main_seekhead, MATROSKA_ID_CHAPTERS, avio_tell(pb)); + if (ret < 0) return ret; + + chapters = start_ebml_master(pb, MATROSKA_ID_CHAPTERS , 0); + editionentry = start_ebml_master(pb, MATROSKA_ID_EDITIONENTRY, 0); + put_ebml_uint(pb, MATROSKA_ID_EDITIONFLAGDEFAULT, 1); + put_ebml_uint(pb, MATROSKA_ID_EDITIONFLAGHIDDEN , 0); + for (i = 0; i < s->nb_chapters; i++) { + ebml_master chapteratom, chapterdisplay; + AVChapter *c = s->chapters[i]; + AVDictionaryEntry *t = NULL; + + chapteratom = start_ebml_master(pb, MATROSKA_ID_CHAPTERATOM, 0); + put_ebml_uint(pb, MATROSKA_ID_CHAPTERUID, c->id); + put_ebml_uint(pb, MATROSKA_ID_CHAPTERTIMESTART, + av_rescale_q(c->start, c->time_base, scale)); + put_ebml_uint(pb, MATROSKA_ID_CHAPTERTIMEEND, + av_rescale_q(c->end, c->time_base, scale)); + put_ebml_uint(pb, MATROSKA_ID_CHAPTERFLAGHIDDEN , 0); + put_ebml_uint(pb, MATROSKA_ID_CHAPTERFLAGENABLED, 1); + if ((t = av_dict_get(c->metadata, "title", NULL, 0))) { + chapterdisplay = start_ebml_master(pb, MATROSKA_ID_CHAPTERDISPLAY, 0); + put_ebml_string(pb, MATROSKA_ID_CHAPSTRING, t->value); + put_ebml_string(pb, MATROSKA_ID_CHAPLANG , "und"); + end_ebml_master(pb, chapterdisplay); + } + end_ebml_master(pb, chapteratom); + } + end_ebml_master(pb, editionentry); + end_ebml_master(pb, chapters); + return 0; +} + +static void mkv_write_simpletag(AVIOContext *pb, AVDictionaryEntry *t) +{ + uint8_t *key = av_strdup(t->key); + uint8_t *p = key; + const uint8_t *lang = NULL; + ebml_master tag; + + if ((p = strrchr(p, '-')) && + (lang = av_convert_lang_to(p + 1, AV_LANG_ISO639_2_BIBL))) + *p = 0; + + p = key; + while (*p) { + if (*p == ' ') + *p = '_'; + else if (*p >= 'a' && *p <= 'z') + *p -= 'a' - 'A'; + p++; + } + + tag = start_ebml_master(pb, MATROSKA_ID_SIMPLETAG, 0); + put_ebml_string(pb, MATROSKA_ID_TAGNAME, key); + if (lang) + put_ebml_string(pb, MATROSKA_ID_TAGLANG, lang); + put_ebml_string(pb, MATROSKA_ID_TAGSTRING, t->value); + end_ebml_master(pb, tag); + + av_freep(&key); +} + +static int mkv_write_tag(AVFormatContext *s, AVDictionary *m, unsigned int elementid, + unsigned int uid, ebml_master *tags) +{ + MatroskaMuxContext *mkv = s->priv_data; + ebml_master tag, targets; + AVDictionaryEntry *t = NULL; + int ret; + + if (!tags->pos) { + ret = mkv_add_seekhead_entry(mkv->main_seekhead, MATROSKA_ID_TAGS, avio_tell(s->pb)); + if (ret < 0) return ret; + + *tags = start_ebml_master(s->pb, MATROSKA_ID_TAGS, 0); + } + + tag = start_ebml_master(s->pb, MATROSKA_ID_TAG, 0); + targets = start_ebml_master(s->pb, MATROSKA_ID_TAGTARGETS, 0); + if (elementid) + put_ebml_uint(s->pb, elementid, uid); + end_ebml_master(s->pb, targets); + + while ((t = av_dict_get(m, "", t, AV_DICT_IGNORE_SUFFIX))) + if (av_strcasecmp(t->key, "title")) + mkv_write_simpletag(s->pb, t); + + end_ebml_master(s->pb, tag); + return 0; +} + +static int mkv_write_tags(AVFormatContext *s) +{ + ebml_master tags = {0}; + int i, ret; + + ff_metadata_conv_ctx(s, ff_mkv_metadata_conv, NULL); + + if (av_dict_get(s->metadata, "", NULL, AV_DICT_IGNORE_SUFFIX)) { + ret = mkv_write_tag(s, s->metadata, 0, 0, &tags); + if (ret < 0) return ret; + } + + for (i = 0; i < s->nb_streams; i++) { + AVStream *st = s->streams[i]; + + if (!av_dict_get(st->metadata, "", 0, AV_DICT_IGNORE_SUFFIX)) + continue; + + ret = mkv_write_tag(s, st->metadata, MATROSKA_ID_TAGTARGETS_TRACKUID, i + 1, &tags); + if (ret < 0) return ret; + } + + for (i = 0; i < s->nb_chapters; i++) { + AVChapter *ch = s->chapters[i]; + + if (!av_dict_get(ch->metadata, "", NULL, AV_DICT_IGNORE_SUFFIX)) + continue; + + ret = mkv_write_tag(s, ch->metadata, MATROSKA_ID_TAGTARGETS_CHAPTERUID, ch->id, &tags); + if (ret < 0) return ret; + } + + if (tags.pos) + end_ebml_master(s->pb, tags); + return 0; +} + +static int mkv_write_attachments(AVFormatContext *s) +{ + MatroskaMuxContext *mkv = s->priv_data; + AVIOContext *pb = s->pb; + ebml_master attachments; + AVLFG c; + int i, ret; + + if (!mkv->have_attachments) + return 0; + + av_lfg_init(&c, av_get_random_seed()); + + ret = mkv_add_seekhead_entry(mkv->main_seekhead, MATROSKA_ID_ATTACHMENTS, avio_tell(pb)); + if (ret < 0) return ret; + + attachments = start_ebml_master(pb, MATROSKA_ID_ATTACHMENTS, 0); + + for (i = 0; i < s->nb_streams; i++) { + AVStream *st = s->streams[i]; + ebml_master attached_file; + AVDictionaryEntry *t; + const char *mimetype = NULL; + + if (st->codec->codec_type != AVMEDIA_TYPE_ATTACHMENT) + continue; + + attached_file = start_ebml_master(pb, MATROSKA_ID_ATTACHEDFILE, 0); + + if (t = av_dict_get(st->metadata, "title", NULL, 0)) + put_ebml_string(pb, MATROSKA_ID_FILEDESC, t->value); + if (!(t = av_dict_get(st->metadata, "filename", NULL, 0))) { + av_log(s, AV_LOG_ERROR, "Attachment stream %d has no filename tag.\n", i); + return AVERROR(EINVAL); + } + put_ebml_string(pb, MATROSKA_ID_FILENAME, t->value); + if (t = av_dict_get(st->metadata, "mimetype", NULL, 0)) + mimetype = t->value; + else if (st->codec->codec_id != CODEC_ID_NONE ) { + int i; + for (i = 0; ff_mkv_mime_tags[i].id != CODEC_ID_NONE; i++) + if (ff_mkv_mime_tags[i].id == st->codec->codec_id) { + mimetype = ff_mkv_mime_tags[i].str; + break; + } + } + if (!mimetype) { + av_log(s, AV_LOG_ERROR, "Attachment stream %d has no mimetype tag and " + "it cannot be deduced from the codec id.\n", i); + return AVERROR(EINVAL); + } + + put_ebml_string(pb, MATROSKA_ID_FILEMIMETYPE, mimetype); + put_ebml_binary(pb, MATROSKA_ID_FILEDATA, st->codec->extradata, st->codec->extradata_size); + put_ebml_uint(pb, MATROSKA_ID_FILEUID, av_lfg_get(&c)); + end_ebml_master(pb, attached_file); + } + end_ebml_master(pb, attachments); + + return 0; +} + static int mkv_write_header(AVFormatContext *s) { MatroskaMuxContext *mkv = s->priv_data; - ByteIOContext *pb = s->pb; + AVIOContext *pb = s->pb; ebml_master ebml_header, segment_info; - int ret; + AVDictionaryEntry *tag; + int ret, i; - mkv->md5_ctx = av_mallocz(av_md5_size); - av_md5_init(mkv->md5_ctx); + if (!strcmp(s->oformat->name, "webm")) mkv->mode = MODE_WEBM; + else mkv->mode = MODE_MATROSKAv2; + + mkv->tracks = av_mallocz(s->nb_streams * sizeof(*mkv->tracks)); + if (!mkv->tracks) + return AVERROR(ENOMEM); ebml_header = start_ebml_master(pb, EBML_ID_HEADER, 0); put_ebml_uint (pb, EBML_ID_EBMLVERSION , 1); put_ebml_uint (pb, EBML_ID_EBMLREADVERSION , 1); put_ebml_uint (pb, EBML_ID_EBMLMAXIDLENGTH , 4); put_ebml_uint (pb, EBML_ID_EBMLMAXSIZELENGTH , 8); - put_ebml_string (pb, EBML_ID_DOCTYPE , "matroska"); + put_ebml_string (pb, EBML_ID_DOCTYPE , s->oformat->name); put_ebml_uint (pb, EBML_ID_DOCTYPEVERSION , 2); put_ebml_uint (pb, EBML_ID_DOCTYPEREADVERSION , 2); end_ebml_master(pb, ebml_header); mkv->segment = start_ebml_master(pb, MATROSKA_ID_SEGMENT, 0); - mkv->segment_offset = url_ftell(pb); + mkv->segment_offset = avio_tell(pb); // we write 2 seek heads - one at the end of the file to point to each // cluster, and one at the beginning to point to all other level one @@ -666,59 +906,68 @@ static int mkv_write_header(AVFormatContext *s) // isn't more than 10 elements if we only write one of each other // currently defined level 1 element mkv->main_seekhead = mkv_start_seekhead(pb, mkv->segment_offset, 10); - mkv->cluster_seekhead = mkv_start_seekhead(pb, mkv->segment_offset, 0); - if (mkv->main_seekhead == NULL || mkv->cluster_seekhead == NULL) + if (!mkv->main_seekhead) return AVERROR(ENOMEM); - ret = mkv_add_seekhead_entry(mkv->main_seekhead, MATROSKA_ID_INFO, url_ftell(pb)); + ret = mkv_add_seekhead_entry(mkv->main_seekhead, MATROSKA_ID_INFO, avio_tell(pb)); if (ret < 0) return ret; segment_info = start_ebml_master(pb, MATROSKA_ID_INFO, 0); put_ebml_uint(pb, MATROSKA_ID_TIMECODESCALE, 1000000); - if (strlen(s->title)) - put_ebml_string(pb, MATROSKA_ID_TITLE, s->title); + if ((tag = av_dict_get(s->metadata, "title", NULL, 0))) + put_ebml_string(pb, MATROSKA_ID_TITLE, tag->value); if (!(s->streams[0]->codec->flags & CODEC_FLAG_BITEXACT)) { + uint32_t segment_uid[4]; + AVLFG lfg; + + av_lfg_init(&lfg, av_get_random_seed()); + + for (i = 0; i < 4; i++) + segment_uid[i] = av_lfg_get(&lfg); + put_ebml_string(pb, MATROSKA_ID_MUXINGAPP , LIBAVFORMAT_IDENT); put_ebml_string(pb, MATROSKA_ID_WRITINGAPP, LIBAVFORMAT_IDENT); - - // reserve space to write the segment UID later - mkv->segment_uid = url_ftell(pb); - put_ebml_void(pb, 19); + put_ebml_binary(pb, MATROSKA_ID_SEGMENTUID, segment_uid, 16); } // reserve space for the duration mkv->duration = 0; - mkv->duration_offset = url_ftell(pb); + mkv->duration_offset = avio_tell(pb); put_ebml_void(pb, 11); // assumes double-precision float to be written end_ebml_master(pb, segment_info); ret = mkv_write_tracks(s); if (ret < 0) return ret; - ret = mkv_add_seekhead_entry(mkv->cluster_seekhead, MATROSKA_ID_CLUSTER, url_ftell(pb)); - if (ret < 0) return ret; + if (mkv->mode != MODE_WEBM) { + ret = mkv_write_chapters(s); + if (ret < 0) return ret; - mkv->cluster_pos = url_ftell(pb); - mkv->cluster = start_ebml_master(pb, MATROSKA_ID_CLUSTER, 0); - put_ebml_uint(pb, MATROSKA_ID_CLUSTERTIMECODE, 0); - mkv->cluster_pts = 0; + ret = mkv_write_tags(s); + if (ret < 0) return ret; + + ret = mkv_write_attachments(s); + if (ret < 0) return ret; + } + + if (!s->pb->seekable) + mkv_write_seekhead(pb, mkv->main_seekhead); mkv->cues = mkv_start_cues(mkv->segment_offset); if (mkv->cues == NULL) return AVERROR(ENOMEM); - return 0; -} + av_init_packet(&mkv->cur_audio_pkt); + mkv->cur_audio_pkt.size = 0; + mkv->audio_buffer_size = 0; -static int mkv_block_size(AVPacket *pkt) -{ - int size = 4; // track num + timecode + flags - return size + pkt->size; + avio_flush(pb); + return 0; } -static int mkv_blockgroup_size(AVPacket *pkt) +static int mkv_blockgroup_size(int pkt_size) { - int size = mkv_block_size(pkt); + int size = pkt_size + 4; size += ebml_num_size(size); size += 2; // EBML ID for block and block duration size += 8; // max size of block duration @@ -727,139 +976,370 @@ static int mkv_blockgroup_size(AVPacket *pkt) return size; } -static void mkv_write_block(AVFormatContext *s, unsigned int blockid, AVPacket *pkt, int flags) +static int ass_get_duration(const uint8_t *p) +{ + int sh, sm, ss, sc, eh, em, es, ec; + uint64_t start, end; + + if (sscanf(p, "%*[^,],%d:%d:%d%*c%d,%d:%d:%d%*c%d", + &sh, &sm, &ss, &sc, &eh, &em, &es, &ec) != 8) + return 0; + start = 3600000*sh + 60000*sm + 1000*ss + 10*sc; + end = 3600000*eh + 60000*em + 1000*es + 10*ec; + return end - start; +} + +static int mkv_write_ass_blocks(AVFormatContext *s, AVIOContext *pb, AVPacket *pkt) { MatroskaMuxContext *mkv = s->priv_data; - ByteIOContext *pb = s->pb; + int i, layer = 0, max_duration = 0, size, line_size, data_size = pkt->size; + uint8_t *start, *end, *data = pkt->data; + ebml_master blockgroup; + char buffer[2048]; + + while (data_size) { + int duration = ass_get_duration(data); + max_duration = FFMAX(duration, max_duration); + end = memchr(data, '\n', data_size); + size = line_size = end ? end-data+1 : data_size; + size -= end ? (end[-1]=='\r')+1 : 0; + start = data; + for (i=0; i<3; i++, start++) + if (!(start = memchr(start, ',', size-(start-data)))) + return max_duration; + size -= start - data; + sscanf(data, "Dialogue: %d,", &layer); + i = snprintf(buffer, sizeof(buffer), "%"PRId64",%d,", + s->streams[pkt->stream_index]->nb_frames, layer); + size = FFMIN(i+size, sizeof(buffer)); + memcpy(buffer+i, start, size-i); + + av_log(s, AV_LOG_DEBUG, "Writing block at offset %" PRIu64 ", size %d, " + "pts %" PRId64 ", duration %d\n", + avio_tell(pb), size, pkt->pts, duration); + blockgroup = start_ebml_master(pb, MATROSKA_ID_BLOCKGROUP, mkv_blockgroup_size(size)); + put_ebml_id(pb, MATROSKA_ID_BLOCK); + put_ebml_num(pb, size+4, 0); + avio_w8(pb, 0x80 | (pkt->stream_index + 1)); // this assumes stream_index is less than 126 + avio_wb16(pb, pkt->pts - mkv->cluster_pts); + avio_w8(pb, 0); + avio_write(pb, buffer, size); + put_ebml_uint(pb, MATROSKA_ID_BLOCKDURATION, duration); + end_ebml_master(pb, blockgroup); + + data += line_size; + data_size -= line_size; + } + + return max_duration; +} + +static void mkv_write_block(AVFormatContext *s, AVIOContext *pb, + unsigned int blockid, AVPacket *pkt, int flags) +{ + MatroskaMuxContext *mkv = s->priv_data; + AVCodecContext *codec = s->streams[pkt->stream_index]->codec; + uint8_t *data = NULL; + int size = pkt->size; + int64_t ts = mkv->tracks[pkt->stream_index].write_dts ? pkt->dts : pkt->pts; av_log(s, AV_LOG_DEBUG, "Writing block at offset %" PRIu64 ", size %d, " "pts %" PRId64 ", dts %" PRId64 ", duration %d, flags %d\n", - url_ftell(pb), pkt->size, pkt->pts, pkt->dts, pkt->duration, flags); + avio_tell(pb), pkt->size, pkt->pts, pkt->dts, pkt->duration, flags); + if (codec->codec_id == CODEC_ID_H264 && codec->extradata_size > 0 && + (AV_RB24(codec->extradata) == 1 || AV_RB32(codec->extradata) == 1)) + ff_avc_parse_nal_units_buf(pkt->data, &data, &size); + else + data = pkt->data; put_ebml_id(pb, blockid); - put_ebml_num(pb, mkv_block_size(pkt), 0); - put_byte(pb, 0x80 | (pkt->stream_index + 1)); // this assumes stream_index is less than 126 - put_be16(pb, pkt->pts - mkv->cluster_pts); - put_byte(pb, flags); - put_buffer(pb, pkt->data, pkt->size); + put_ebml_num(pb, size+4, 0); + avio_w8(pb, 0x80 | (pkt->stream_index + 1)); // this assumes stream_index is less than 126 + avio_wb16(pb, ts - mkv->cluster_pts); + avio_w8(pb, flags); + avio_write(pb, data, size); + if (data != pkt->data) + av_free(data); } -static int mkv_write_packet(AVFormatContext *s, AVPacket *pkt) +static int srt_get_duration(uint8_t **buf) +{ + int i, duration = 0; + + for (i=0; i<2 && !duration; i++) { + int s_hour, s_min, s_sec, s_hsec, e_hour, e_min, e_sec, e_hsec; + if (sscanf(*buf, "%d:%2d:%2d%*1[,.]%3d --> %d:%2d:%2d%*1[,.]%3d", + &s_hour, &s_min, &s_sec, &s_hsec, + &e_hour, &e_min, &e_sec, &e_hsec) == 8) { + s_min += 60*s_hour; e_min += 60*e_hour; + s_sec += 60*s_min; e_sec += 60*e_min; + s_hsec += 1000*s_sec; e_hsec += 1000*e_sec; + duration = e_hsec - s_hsec; + } + *buf += strcspn(*buf, "\n") + 1; + } + return duration; +} + +static int mkv_write_srt_blocks(AVFormatContext *s, AVIOContext *pb, AVPacket *pkt) +{ + ebml_master blockgroup; + AVPacket pkt2 = *pkt; + int64_t duration = srt_get_duration(&pkt2.data); + pkt2.size -= pkt2.data - pkt->data; + + blockgroup = start_ebml_master(pb, MATROSKA_ID_BLOCKGROUP, + mkv_blockgroup_size(pkt2.size)); + mkv_write_block(s, pb, MATROSKA_ID_BLOCK, &pkt2, 0); + put_ebml_uint(pb, MATROSKA_ID_BLOCKDURATION, duration); + end_ebml_master(pb, blockgroup); + + return duration; +} + +static void mkv_flush_dynbuf(AVFormatContext *s) +{ + MatroskaMuxContext *mkv = s->priv_data; + int bufsize; + uint8_t *dyn_buf; + + if (!mkv->dyn_bc) + return; + + bufsize = avio_close_dyn_buf(mkv->dyn_bc, &dyn_buf); + avio_write(s->pb, dyn_buf, bufsize); + av_free(dyn_buf); + mkv->dyn_bc = NULL; +} + +static int mkv_write_packet_internal(AVFormatContext *s, AVPacket *pkt) { MatroskaMuxContext *mkv = s->priv_data; - ByteIOContext *pb = s->pb; + AVIOContext *pb = s->pb; AVCodecContext *codec = s->streams[pkt->stream_index]->codec; - int keyframe = !!(pkt->flags & PKT_FLAG_KEY); + int keyframe = !!(pkt->flags & AV_PKT_FLAG_KEY); + int duration = pkt->duration; int ret; + int64_t ts = mkv->tracks[pkt->stream_index].write_dts ? pkt->dts : pkt->pts; - // start a new cluster every 5 MB or 5 sec - if (url_ftell(pb) > mkv->cluster_pos + 5*1024*1024 || pkt->pts > mkv->cluster_pts + 5000) { - av_log(s, AV_LOG_DEBUG, "Starting new cluster at offset %" PRIu64 - " bytes, pts %" PRIu64 "\n", url_ftell(pb), pkt->pts); - end_ebml_master(pb, mkv->cluster); - - ret = mkv_add_seekhead_entry(mkv->cluster_seekhead, MATROSKA_ID_CLUSTER, url_ftell(pb)); - if (ret < 0) return ret; + if (ts == AV_NOPTS_VALUE) { + av_log(s, AV_LOG_ERROR, "Can't write packet with unknown timestamp\n"); + return AVERROR(EINVAL); + } - mkv->cluster_pos = url_ftell(pb); - mkv->cluster = start_ebml_master(pb, MATROSKA_ID_CLUSTER, 0); - put_ebml_uint(pb, MATROSKA_ID_CLUSTERTIMECODE, pkt->pts); - mkv->cluster_pts = pkt->pts; - av_md5_update(mkv->md5_ctx, pkt->data, FFMIN(200, pkt->size)); + if (!s->pb->seekable) { + if (!mkv->dyn_bc) + avio_open_dyn_buf(&mkv->dyn_bc); + pb = mkv->dyn_bc; } - if (codec->codec_id == CODEC_ID_H264 && - codec->extradata_size > 0 && AV_RB32(codec->extradata) == 0x00000001) { - /* from x264 or from bytestream h264 */ - /* nal reformating needed */ - int ret = ff_avc_parse_nal_units(pkt->data, &pkt->data, &pkt->size); - if (ret < 0) - return ret; - assert(pkt->size); + if (!mkv->cluster_pos) { + mkv->cluster_pos = avio_tell(s->pb); + mkv->cluster = start_ebml_master(pb, MATROSKA_ID_CLUSTER, 0); + put_ebml_uint(pb, MATROSKA_ID_CLUSTERTIMECODE, FFMAX(0, ts)); + mkv->cluster_pts = FFMAX(0, ts); } - if (codec->codec_type != CODEC_TYPE_SUBTITLE) { - mkv_write_block(s, MATROSKA_ID_SIMPLEBLOCK, pkt, keyframe << 7); + if (codec->codec_type != AVMEDIA_TYPE_SUBTITLE) { + mkv_write_block(s, pb, MATROSKA_ID_SIMPLEBLOCK, pkt, keyframe << 7); + } else if (codec->codec_id == CODEC_ID_SSA) { + duration = mkv_write_ass_blocks(s, pb, pkt); + } else if (codec->codec_id == CODEC_ID_SRT) { + duration = mkv_write_srt_blocks(s, pb, pkt); } else { - ebml_master blockgroup = start_ebml_master(pb, MATROSKA_ID_BLOCKGROUP, mkv_blockgroup_size(pkt)); - mkv_write_block(s, MATROSKA_ID_BLOCK, pkt, 0); - put_ebml_uint(pb, MATROSKA_ID_DURATION, pkt->duration); + ebml_master blockgroup = start_ebml_master(pb, MATROSKA_ID_BLOCKGROUP, mkv_blockgroup_size(pkt->size)); + duration = pkt->convergence_duration; + mkv_write_block(s, pb, MATROSKA_ID_BLOCK, pkt, 0); + put_ebml_uint(pb, MATROSKA_ID_BLOCKDURATION, duration); end_ebml_master(pb, blockgroup); } - if (codec->codec_type == CODEC_TYPE_VIDEO && keyframe) { - ret = mkv_add_cuepoint(mkv->cues, pkt, mkv->cluster_pos); + if (codec->codec_type == AVMEDIA_TYPE_VIDEO && keyframe) { + ret = mkv_add_cuepoint(mkv->cues, pkt->stream_index, ts, mkv->cluster_pos); if (ret < 0) return ret; } - mkv->duration = FFMAX(mkv->duration, pkt->pts + pkt->duration); + mkv->duration = FFMAX(mkv->duration, ts + duration); + return 0; +} + +static int mkv_copy_packet(MatroskaMuxContext *mkv, const AVPacket *pkt) +{ + uint8_t *data = mkv->cur_audio_pkt.data; + mkv->cur_audio_pkt = *pkt; + mkv->cur_audio_pkt.data = av_fast_realloc(data, &mkv->audio_buffer_size, pkt->size); + if (!mkv->cur_audio_pkt.data) + return AVERROR(ENOMEM); + + memcpy(mkv->cur_audio_pkt.data, pkt->data, pkt->size); + mkv->cur_audio_pkt.size = pkt->size; return 0; } +static int mkv_write_packet(AVFormatContext *s, AVPacket *pkt) +{ + MatroskaMuxContext *mkv = s->priv_data; + AVIOContext *pb = s->pb->seekable ? s->pb : mkv->dyn_bc; + AVCodecContext *codec = s->streams[pkt->stream_index]->codec; + int ret, keyframe = !!(pkt->flags & AV_PKT_FLAG_KEY); + int64_t ts = mkv->tracks[pkt->stream_index].write_dts ? pkt->dts : pkt->pts; + int cluster_size = avio_tell(pb) - (s->pb->seekable ? mkv->cluster_pos : 0); + + // start a new cluster every 5 MB or 5 sec, or 32k / 1 sec for streaming or + // after 4k and on a keyframe + if (mkv->cluster_pos && + ((!s->pb->seekable && (cluster_size > 32*1024 || ts > mkv->cluster_pts + 1000)) + || cluster_size > 5*1024*1024 || ts > mkv->cluster_pts + 5000 + || (codec->codec_type == AVMEDIA_TYPE_VIDEO && keyframe && cluster_size > 4*1024))) { + av_log(s, AV_LOG_DEBUG, "Starting new cluster at offset %" PRIu64 + " bytes, pts %" PRIu64 "\n", avio_tell(pb), ts); + end_ebml_master(pb, mkv->cluster); + mkv->cluster_pos = 0; + if (mkv->dyn_bc) + mkv_flush_dynbuf(s); + } + + // check if we have an audio packet cached + if (mkv->cur_audio_pkt.size > 0) { + ret = mkv_write_packet_internal(s, &mkv->cur_audio_pkt); + mkv->cur_audio_pkt.size = 0; + if (ret < 0) { + av_log(s, AV_LOG_ERROR, "Could not write cached audio packet ret:%d\n", ret); + return ret; + } + } + + // buffer an audio packet to ensure the packet containing the video + // keyframe's timecode is contained in the same cluster for WebM + if (codec->codec_type == AVMEDIA_TYPE_AUDIO) + ret = mkv_copy_packet(mkv, pkt); + else + ret = mkv_write_packet_internal(s, pkt); + return ret; +} + static int mkv_write_trailer(AVFormatContext *s) { MatroskaMuxContext *mkv = s->priv_data; - ByteIOContext *pb = s->pb; - offset_t currentpos, second_seekhead, cuespos; + AVIOContext *pb = s->pb; + int64_t currentpos, cuespos; int ret; - end_ebml_master(pb, mkv->cluster); + // check if we have an audio packet cached + if (mkv->cur_audio_pkt.size > 0) { + ret = mkv_write_packet_internal(s, &mkv->cur_audio_pkt); + mkv->cur_audio_pkt.size = 0; + if (ret < 0) { + av_log(s, AV_LOG_ERROR, "Could not write cached audio packet ret:%d\n", ret); + return ret; + } + } - if (!url_is_streamed(pb)) { - cuespos = mkv_write_cues(pb, mkv->cues, s->nb_streams); - second_seekhead = mkv_write_seekhead(pb, mkv->cluster_seekhead); + if (mkv->dyn_bc) { + end_ebml_master(mkv->dyn_bc, mkv->cluster); + mkv_flush_dynbuf(s); + } else if (mkv->cluster_pos) { + end_ebml_master(pb, mkv->cluster); + } + + if (pb->seekable) { + if (mkv->cues->num_entries) { + cuespos = mkv_write_cues(pb, mkv->cues, s->nb_streams); + + ret = mkv_add_seekhead_entry(mkv->main_seekhead, MATROSKA_ID_CUES, cuespos); + if (ret < 0) return ret; + } - ret = mkv_add_seekhead_entry(mkv->main_seekhead, MATROSKA_ID_CUES , cuespos); - if (ret < 0) return ret; - ret = mkv_add_seekhead_entry(mkv->main_seekhead, MATROSKA_ID_SEEKHEAD, second_seekhead); - if (ret < 0) return ret; mkv_write_seekhead(pb, mkv->main_seekhead); // update the duration av_log(s, AV_LOG_DEBUG, "end duration = %" PRIu64 "\n", mkv->duration); - currentpos = url_ftell(pb); - url_fseek(pb, mkv->duration_offset, SEEK_SET); + currentpos = avio_tell(pb); + avio_seek(pb, mkv->duration_offset, SEEK_SET); put_ebml_float(pb, MATROSKA_ID_DURATION, mkv->duration); - // write the md5sum of some frames as the segment UID - if (!(s->streams[0]->codec->flags & CODEC_FLAG_BITEXACT)) { - uint8_t segment_uid[16]; - av_md5_final(mkv->md5_ctx, segment_uid); - url_fseek(pb, mkv->segment_uid, SEEK_SET); - put_ebml_binary(pb, MATROSKA_ID_SEGMENTUID, segment_uid, 16); - } - url_fseek(pb, currentpos, SEEK_SET); + avio_seek(pb, currentpos, SEEK_SET); } end_ebml_master(pb, mkv->segment); - av_free(mkv->md5_ctx); + av_free(mkv->tracks); + av_freep(&mkv->cues->entries); + av_freep(&mkv->cues); + av_destruct_packet(&mkv->cur_audio_pkt); + avio_flush(pb); return 0; } -AVOutputFormat matroska_muxer = { - "matroska", - NULL_IF_CONFIG_SMALL("Matroska file format"), - "video/x-matroska", - "mkv", - sizeof(MatroskaMuxContext), - CODEC_ID_MP2, - CODEC_ID_MPEG4, - mkv_write_header, - mkv_write_packet, - mkv_write_trailer, - .codec_tag = (const AVCodecTag*[]){codec_bmp_tags, codec_wav_tags, 0}, - .subtitle_codec = CODEC_ID_TEXT, -}; +static int mkv_query_codec(enum CodecID codec_id, int std_compliance) +{ + int i; + for (i = 0; ff_mkv_codec_tags[i].id != CODEC_ID_NONE; i++) + if (ff_mkv_codec_tags[i].id == codec_id) + return 1; + + if (std_compliance < FF_COMPLIANCE_NORMAL) { // mkv theoretically supports any + enum AVMediaType type = avcodec_get_type(codec_id); // video/audio through VFW/ACM + if (type == AVMEDIA_TYPE_VIDEO || type == AVMEDIA_TYPE_AUDIO) + return 1; + } + + return 0; +} -AVOutputFormat matroska_audio_muxer = { - "matroska", - NULL_IF_CONFIG_SMALL("Matroska file format"), - "audio/x-matroska", - "mka", - sizeof(MatroskaMuxContext), - CODEC_ID_MP2, - CODEC_ID_NONE, - mkv_write_header, - mkv_write_packet, - mkv_write_trailer, - .codec_tag = (const AVCodecTag*[]){codec_wav_tags, 0}, +#if CONFIG_MATROSKA_MUXER +AVOutputFormat ff_matroska_muxer = { + .name = "matroska", + .long_name = NULL_IF_CONFIG_SMALL("Matroska file format"), + .mime_type = "video/x-matroska", + .extensions = "mkv", + .priv_data_size = sizeof(MatroskaMuxContext), + .audio_codec = CONFIG_LIBVORBIS_ENCODER ? + CODEC_ID_VORBIS : CODEC_ID_AC3, + .video_codec = CONFIG_LIBX264_ENCODER ? + CODEC_ID_H264 : CODEC_ID_MPEG4, + .write_header = mkv_write_header, + .write_packet = mkv_write_packet, + .write_trailer = mkv_write_trailer, + .flags = AVFMT_GLOBALHEADER | AVFMT_VARIABLE_FPS | + AVFMT_TS_NONSTRICT, + .codec_tag = (const AVCodecTag* const []){ + ff_codec_bmp_tags, ff_codec_wav_tags, 0 + }, + .subtitle_codec = CODEC_ID_SSA, + .query_codec = mkv_query_codec, +}; +#endif + +#if CONFIG_WEBM_MUXER +AVOutputFormat ff_webm_muxer = { + .name = "webm", + .long_name = NULL_IF_CONFIG_SMALL("WebM file format"), + .mime_type = "video/webm", + .extensions = "webm", + .priv_data_size = sizeof(MatroskaMuxContext), + .audio_codec = CODEC_ID_VORBIS, + .video_codec = CODEC_ID_VP8, + .write_header = mkv_write_header, + .write_packet = mkv_write_packet, + .write_trailer = mkv_write_trailer, + .flags = AVFMT_GLOBALHEADER | AVFMT_VARIABLE_FPS | + AVFMT_TS_NONSTRICT, +}; +#endif + +#if CONFIG_MATROSKA_AUDIO_MUXER +AVOutputFormat ff_matroska_audio_muxer = { + .name = "matroska", + .long_name = NULL_IF_CONFIG_SMALL("Matroska file format"), + .mime_type = "audio/x-matroska", + .extensions = "mka", + .priv_data_size = sizeof(MatroskaMuxContext), + .audio_codec = CONFIG_LIBVORBIS_ENCODER ? + CODEC_ID_VORBIS : CODEC_ID_AC3, + .video_codec = CODEC_ID_NONE, + .write_header = mkv_write_header, + .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 }, }; +#endif