blob: b9c0f7ae67ed6b85bc104d895503af937cdc1e5e [file] [log] [blame]
/*
* MOV, 3GP, MP4 muxer
* Copyright (c) 2003 Thomas Raivio
* Copyright (c) 2004 Gildas Bazin <gbazin at videolan dot org>
* Copyright (c) 2009 Baptiste Coudurier <baptiste dot coudurier at gmail dot com>
*
* This file is part of FFmpeg.
*
* FFmpeg 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,
* 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
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <stdint.h>
#include <inttypes.h>
#include "movenc.h"
#include "avformat.h"
#include "avio_internal.h"
#include "riff.h"
#include "avio.h"
#include "isom.h"
#include "avc.h"
#include "libavcodec/ac3_parser.h"
#include "libavcodec/get_bits.h"
#include "libavcodec/put_bits.h"
#include "libavcodec/vc1_common.h"
#include "libavcodec/raw.h"
#include "internal.h"
#include "libavutil/avstring.h"
#include "libavutil/intfloat.h"
#include "libavutil/mathematics.h"
#include "libavutil/libm.h"
#include "libavutil/opt.h"
#include "libavutil/dict.h"
#include "libavutil/pixdesc.h"
#include "libavutil/timecode.h"
#include "libavutil/color_utils.h"
#include "hevc.h"
#include "rtpenc.h"
#include "mov_chan.h"
static const AVOption options[] = {
{ "movflags", "MOV muxer flags", offsetof(MOVMuxContext, flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
{ "rtphint", "Add RTP hint tracks", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_RTP_HINT}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
{ "moov_size", "maximum moov size so it can be placed at the begin", offsetof(MOVMuxContext, reserved_moov_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, 0 },
{ "empty_moov", "Make the initial moov atom empty", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_EMPTY_MOOV}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
{ "frag_keyframe", "Fragment at video keyframes", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_FRAG_KEYFRAME}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
{ "separate_moof", "Write separate moof/mdat atoms for each track", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_SEPARATE_MOOF}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
{ "frag_custom", "Flush fragments on caller requests", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_FRAG_CUSTOM}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
{ "isml", "Create a live smooth streaming feed (for pushing to a publishing point)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_ISML}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
{ "faststart", "Run a second pass to put the index (moov atom) at the beginning of the file", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_FASTSTART}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
{ "omit_tfhd_offset", "Omit the base data offset in tfhd atoms", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_OMIT_TFHD_OFFSET}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
{ "disable_chpl", "Disable Nero chapter atom", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_DISABLE_CHPL}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
{ "default_base_moof", "Set the default-base-is-moof flag in tfhd atoms", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_DEFAULT_BASE_MOOF}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
{ "dash", "Write DASH compatible fragmented MP4", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_DASH}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
{ "frag_discont", "Signal that the next fragment is discontinuous from earlier ones", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_FRAG_DISCONT}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
{ "delay_moov", "Delay writing the initial moov until the first fragment is cut, or until the first fragment flush", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_DELAY_MOOV}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
{ "global_sidx", "Write a global sidx index at the start of the file", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_GLOBAL_SIDX}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
{ "write_colr", "Write colr atom (Experimental, may be renamed or changed, do not use from scripts)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_WRITE_COLR}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
{ "write_gama", "Write deprecated gama atom", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_WRITE_GAMA}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" },
FF_RTP_FLAG_OPTS(MOVMuxContext, rtp_flags),
{ "skip_iods", "Skip writing iods atom.", offsetof(MOVMuxContext, iods_skip), AV_OPT_TYPE_BOOL, {.i64 = 1}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM},
{ "iods_audio_profile", "iods audio profile atom.", offsetof(MOVMuxContext, iods_audio_profile), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 255, AV_OPT_FLAG_ENCODING_PARAM},
{ "iods_video_profile", "iods video profile atom.", offsetof(MOVMuxContext, iods_video_profile), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 255, AV_OPT_FLAG_ENCODING_PARAM},
{ "frag_duration", "Maximum fragment duration", offsetof(MOVMuxContext, max_fragment_duration), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
{ "min_frag_duration", "Minimum fragment duration", offsetof(MOVMuxContext, min_fragment_duration), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
{ "frag_size", "Maximum fragment size", offsetof(MOVMuxContext, max_fragment_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
{ "ism_lookahead", "Number of lookahead entries for ISM files", offsetof(MOVMuxContext, ism_lookahead), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
{ "video_track_timescale", "set timescale of all video tracks", offsetof(MOVMuxContext, video_track_timescale), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
{ "brand", "Override major brand", offsetof(MOVMuxContext, major_brand), AV_OPT_TYPE_STRING, {.str = NULL}, .flags = AV_OPT_FLAG_ENCODING_PARAM },
{ "use_editlist", "use edit list", offsetof(MOVMuxContext, use_editlist), AV_OPT_TYPE_BOOL, {.i64 = -1}, -1, 1, AV_OPT_FLAG_ENCODING_PARAM},
{ "fragment_index", "Fragment number of the next fragment", offsetof(MOVMuxContext, fragments), AV_OPT_TYPE_INT, {.i64 = 1}, 1, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
{ "mov_gamma", "gamma value for gama atom", offsetof(MOVMuxContext, gamma), AV_OPT_TYPE_FLOAT, {.dbl = 0.0 }, 0.0, 10, AV_OPT_FLAG_ENCODING_PARAM},
{ "frag_interleave", "Interleave samples within fragments (max number of consecutive samples, lower is tighter interleaving, but with more overhead)", offsetof(MOVMuxContext, frag_interleave), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM },
{ "encryption_scheme", "Configures the encryption scheme, allowed values are none, cenc-aes-ctr", offsetof(MOVMuxContext, encryption_scheme_str), AV_OPT_TYPE_STRING, {.str = NULL}, .flags = AV_OPT_FLAG_ENCODING_PARAM, .unit = "movflags" },
{ "encryption_key", "The media encryption key (hex)", offsetof(MOVMuxContext, encryption_key), AV_OPT_TYPE_BINARY, .flags = AV_OPT_FLAG_ENCODING_PARAM, .unit = "movflags" },
{ "encryption_kid", "The media encryption key identifier (hex)", offsetof(MOVMuxContext, encryption_kid), AV_OPT_TYPE_BINARY, .flags = AV_OPT_FLAG_ENCODING_PARAM, .unit = "movflags" },
{ NULL },
};
#define MOV_CLASS(flavor)\
static const AVClass flavor ## _muxer_class = {\
.class_name = #flavor " muxer",\
.item_name = av_default_item_name,\
.option = options,\
.version = LIBAVUTIL_VERSION_INT,\
};
static int get_moov_size(AVFormatContext *s);
static int utf8len(const uint8_t *b)
{
int len = 0;
int val;
while (*b) {
GET_UTF8(val, *b++, return -1;)
len++;
}
return len;
}
//FIXME support 64 bit variant with wide placeholders
static int64_t update_size(AVIOContext *pb, int64_t pos)
{
int64_t curpos = avio_tell(pb);
avio_seek(pb, pos, SEEK_SET);
avio_wb32(pb, curpos - pos); /* rewrite size */
avio_seek(pb, curpos, SEEK_SET);
return curpos - pos;
}
static int co64_required(const MOVTrack *track)
{
if (track->entry > 0 && track->cluster[track->entry - 1].pos + track->data_offset > UINT32_MAX)
return 1;
return 0;
}
/* Chunk offset atom */
static int mov_write_stco_tag(AVIOContext *pb, MOVTrack *track)
{
int i;
int mode64 = co64_required(track); // use 32 bit size variant if possible
int64_t pos = avio_tell(pb);
avio_wb32(pb, 0); /* size */
if (mode64)
ffio_wfourcc(pb, "co64");
else
ffio_wfourcc(pb, "stco");
avio_wb32(pb, 0); /* version & flags */
avio_wb32(pb, track->chunkCount); /* entry count */
for (i = 0; i < track->entry; i++) {
if (!track->cluster[i].chunkNum)
continue;
if (mode64 == 1)
avio_wb64(pb, track->cluster[i].pos + track->data_offset);
else
avio_wb32(pb, track->cluster[i].pos + track->data_offset);
}
return update_size(pb, pos);
}
/* Sample size atom */
static int mov_write_stsz_tag(AVIOContext *pb, MOVTrack *track)
{
int equalChunks = 1;
int i, j, entries = 0, tst = -1, oldtst = -1;
int64_t pos = avio_tell(pb);
avio_wb32(pb, 0); /* size */
ffio_wfourcc(pb, "stsz");
avio_wb32(pb, 0); /* version & flags */
for (i = 0; i < track->entry; i++) {
tst = track->cluster[i].size / track->cluster[i].entries;
if (oldtst != -1 && tst != oldtst)
equalChunks = 0;
oldtst = tst;
entries += track->cluster[i].entries;
}
if (equalChunks && track->entry) {
int sSize = track->entry ? track->cluster[0].size / track->cluster[0].entries : 0;
sSize = FFMAX(1, sSize); // adpcm mono case could make sSize == 0
avio_wb32(pb, sSize); // sample size
avio_wb32(pb, entries); // sample count
} else {
avio_wb32(pb, 0); // sample size
avio_wb32(pb, entries); // sample count
for (i = 0; i < track->entry; i++) {
for (j = 0; j < track->cluster[i].entries; j++) {
avio_wb32(pb, track->cluster[i].size /
track->cluster[i].entries);
}
}
}
return update_size(pb, pos);
}
/* Sample to chunk atom */
static int mov_write_stsc_tag(AVIOContext *pb, MOVTrack *track)
{
int index = 0, oldval = -1, i;
int64_t entryPos, curpos;
int64_t pos = avio_tell(pb);
avio_wb32(pb, 0); /* size */
ffio_wfourcc(pb, "stsc");
avio_wb32(pb, 0); // version & flags
entryPos = avio_tell(pb);
avio_wb32(pb, track->chunkCount); // entry count
for (i = 0; i < track->entry; i++) {
if (oldval != track->cluster[i].samples_in_chunk && track->cluster[i].chunkNum) {
avio_wb32(pb, track->cluster[i].chunkNum); // first chunk
avio_wb32(pb, track->cluster[i].samples_in_chunk); // samples per chunk
avio_wb32(pb, 0x1); // sample description index
oldval = track->cluster[i].samples_in_chunk;
index++;
}
}
curpos = avio_tell(pb);
avio_seek(pb, entryPos, SEEK_SET);
avio_wb32(pb, index); // rewrite size
avio_seek(pb, curpos, SEEK_SET);
return update_size(pb, pos);
}
/* Sync sample atom */
static int mov_write_stss_tag(AVIOContext *pb, MOVTrack *track, uint32_t flag)
{
int64_t curpos, entryPos;
int i, index = 0;
int64_t pos = avio_tell(pb);
avio_wb32(pb, 0); // size
ffio_wfourcc(pb, flag == MOV_SYNC_SAMPLE ? "stss" : "stps");
avio_wb32(pb, 0); // version & flags
entryPos = avio_tell(pb);
avio_wb32(pb, track->entry); // entry count
for (i = 0; i < track->entry; i++) {
if (track->cluster[i].flags & flag) {
avio_wb32(pb, i + 1);
index++;
}
}
curpos = avio_tell(pb);
avio_seek(pb, entryPos, SEEK_SET);
avio_wb32(pb, index); // rewrite size
avio_seek(pb, curpos, SEEK_SET);
return update_size(pb, pos);
}
static int mov_write_amr_tag(AVIOContext *pb, MOVTrack *track)
{
avio_wb32(pb, 0x11); /* size */
if (track->mode == MODE_MOV) ffio_wfourcc(pb, "samr");
else ffio_wfourcc(pb, "damr");
ffio_wfourcc(pb, "FFMP");
avio_w8(pb, 0); /* decoder version */
avio_wb16(pb, 0x81FF); /* Mode set (all modes for AMR_NB) */
avio_w8(pb, 0x00); /* Mode change period (no restriction) */
avio_w8(pb, 0x01); /* Frames per sample */
return 0x11;
}
static int mov_write_ac3_tag(AVIOContext *pb, MOVTrack *track)
{
GetBitContext gbc;
PutBitContext pbc;
uint8_t buf[3];
int fscod, bsid, bsmod, acmod, lfeon, frmsizecod;
if (track->vos_len < 7)
return -1;
avio_wb32(pb, 11);
ffio_wfourcc(pb, "dac3");
init_get_bits(&gbc, track->vos_data + 4, (track->vos_len - 4) * 8);
fscod = get_bits(&gbc, 2);
frmsizecod = get_bits(&gbc, 6);
bsid = get_bits(&gbc, 5);
bsmod = get_bits(&gbc, 3);
acmod = get_bits(&gbc, 3);
if (acmod == 2) {
skip_bits(&gbc, 2); // dsurmod
} else {
if ((acmod & 1) && acmod != 1)
skip_bits(&gbc, 2); // cmixlev
if (acmod & 4)
skip_bits(&gbc, 2); // surmixlev
}
lfeon = get_bits1(&gbc);
init_put_bits(&pbc, buf, sizeof(buf));
put_bits(&pbc, 2, fscod);
put_bits(&pbc, 5, bsid);
put_bits(&pbc, 3, bsmod);
put_bits(&pbc, 3, acmod);
put_bits(&pbc, 1, lfeon);
put_bits(&pbc, 5, frmsizecod >> 1); // bit_rate_code
put_bits(&pbc, 5, 0); // reserved
flush_put_bits(&pbc);
avio_write(pb, buf, sizeof(buf));
return 11;
}
struct eac3_info {
AVPacket pkt;
uint8_t ec3_done;
uint8_t num_blocks;
/* Layout of the EC3SpecificBox */
/* maximum bitrate */
uint16_t data_rate;
/* number of independent substreams */
uint8_t num_ind_sub;
struct {
/* sample rate code (see ff_ac3_sample_rate_tab) 2 bits */
uint8_t fscod;
/* bit stream identification 5 bits */
uint8_t bsid;
/* one bit reserved */
/* audio service mixing (not supported yet) 1 bit */
/* bit stream mode 3 bits */
uint8_t bsmod;
/* audio coding mode 3 bits */
uint8_t acmod;
/* sub woofer on 1 bit */
uint8_t lfeon;
/* 3 bits reserved */
/* number of dependent substreams associated with this substream 4 bits */
uint8_t num_dep_sub;
/* channel locations of the dependent substream(s), if any, 9 bits */
uint16_t chan_loc;
/* if there is no dependent substream, then one bit reserved instead */
} substream[1]; /* TODO: support 8 independent substreams */
};
#if CONFIG_AC3_PARSER
static int handle_eac3(MOVMuxContext *mov, AVPacket *pkt, MOVTrack *track)
{
GetBitContext gbc;
AC3HeaderInfo tmp, *hdr = &tmp;
struct eac3_info *info;
int num_blocks;
if (!track->eac3_priv && !(track->eac3_priv = av_mallocz(sizeof(*info))))
return AVERROR(ENOMEM);
info = track->eac3_priv;
init_get_bits(&gbc, pkt->data, pkt->size * 8);
if (avpriv_ac3_parse_header(&gbc, &hdr) < 0) {
/* drop the packets until we see a good one */
if (!track->entry) {
av_log(mov, AV_LOG_WARNING, "Dropping invalid packet from start of the stream\n");
return 0;
}
return AVERROR_INVALIDDATA;
}
info->data_rate = FFMAX(info->data_rate, hdr->bit_rate / 1000);
num_blocks = hdr->num_blocks;
if (!info->ec3_done) {
/* AC-3 substream must be the first one */
if (hdr->bitstream_id <= 10 && hdr->substreamid != 0)
return AVERROR(EINVAL);
/* this should always be the case, given that our AC-3 parser
* concatenates dependent frames to their independent parent */
if (hdr->frame_type == EAC3_FRAME_TYPE_INDEPENDENT) {
/* substream ids must be incremental */
if (hdr->substreamid > info->num_ind_sub + 1)
return AVERROR(EINVAL);
if (hdr->substreamid == info->num_ind_sub + 1) {
//info->num_ind_sub++;
avpriv_request_sample(track->enc, "Multiple independent substreams");
return AVERROR_PATCHWELCOME;
} else if (hdr->substreamid < info->num_ind_sub ||
hdr->substreamid == 0 && info->substream[0].bsid) {
info->ec3_done = 1;
goto concatenate;
}
}
/* fill the info needed for the "dec3" atom */
info->substream[hdr->substreamid].fscod = hdr->sr_code;
info->substream[hdr->substreamid].bsid = hdr->bitstream_id;
info->substream[hdr->substreamid].bsmod = hdr->bitstream_mode;
info->substream[hdr->substreamid].acmod = hdr->channel_mode;
info->substream[hdr->substreamid].lfeon = hdr->lfe_on;
/* Parse dependent substream(s), if any */
if (pkt->size != hdr->frame_size) {
int cumul_size = hdr->frame_size;
int parent = hdr->substreamid;
while (cumul_size != pkt->size) {
int i;
init_get_bits(&gbc, pkt->data + cumul_size, (pkt->size - cumul_size) * 8);
if (avpriv_ac3_parse_header(&gbc, &hdr) < 0)
return AVERROR_INVALIDDATA;
if (hdr->frame_type != EAC3_FRAME_TYPE_DEPENDENT)
return AVERROR(EINVAL);
cumul_size += hdr->frame_size;
info->substream[parent].num_dep_sub++;
/* header is parsed up to lfeon, but custom channel map may be needed */
/* skip bsid */
skip_bits(&gbc, 5);
/* skip volume control params */
for (i = 0; i < (hdr->channel_mode ? 1 : 2); i++) {
skip_bits(&gbc, 5); // skip dialog normalization
if (get_bits1(&gbc)) {
skip_bits(&gbc, 8); // skip compression gain word
}
}
/* get the dependent stream channel map, if exists */
if (get_bits1(&gbc))
info->substream[parent].chan_loc |= (get_bits(&gbc, 16) >> 5) & 0x1f;
else
info->substream[parent].chan_loc |= hdr->channel_mode;
}
}
}
concatenate:
if (!info->num_blocks && num_blocks == 6)
return pkt->size;
else if (info->num_blocks + num_blocks > 6)
return AVERROR_INVALIDDATA;
if (!info->num_blocks) {
int ret;
if ((ret = av_copy_packet(&info->pkt, pkt)) < 0)
return ret;
info->num_blocks = num_blocks;
return 0;
} else {
int ret;
if ((ret = av_grow_packet(&info->pkt, pkt->size)) < 0)
return ret;
memcpy(info->pkt.data + info->pkt.size - pkt->size, pkt->data, pkt->size);
info->num_blocks += num_blocks;
info->pkt.duration += pkt->duration;
if ((ret = av_copy_packet_side_data(&info->pkt, pkt)) < 0)
return ret;
if (info->num_blocks != 6)
return 0;
av_packet_unref(pkt);
if ((ret = av_copy_packet(pkt, &info->pkt)) < 0)
return ret;
av_packet_unref(&info->pkt);
info->num_blocks = 0;
}
return pkt->size;
}
#endif
static int mov_write_eac3_tag(AVIOContext *pb, MOVTrack *track)
{
PutBitContext pbc;
uint8_t *buf;
struct eac3_info *info;
int size, i;
if (!track->eac3_priv)
return AVERROR(EINVAL);
info = track->eac3_priv;
size = 2 + 4 * (info->num_ind_sub + 1);
buf = av_malloc(size);
if (!buf) {
size = AVERROR(ENOMEM);
goto end;
}
init_put_bits(&pbc, buf, size);
put_bits(&pbc, 13, info->data_rate);
put_bits(&pbc, 3, info->num_ind_sub);
for (i = 0; i <= info->num_ind_sub; i++) {
put_bits(&pbc, 2, info->substream[i].fscod);
put_bits(&pbc, 5, info->substream[i].bsid);
put_bits(&pbc, 1, 0); /* reserved */
put_bits(&pbc, 1, 0); /* asvc */
put_bits(&pbc, 3, info->substream[i].bsmod);
put_bits(&pbc, 3, info->substream[i].acmod);
put_bits(&pbc, 1, info->substream[i].lfeon);
put_bits(&pbc, 5, 0); /* reserved */
put_bits(&pbc, 4, info->substream[i].num_dep_sub);
if (!info->substream[i].num_dep_sub) {
put_bits(&pbc, 1, 0); /* reserved */
size--;
} else {
put_bits(&pbc, 9, info->substream[i].chan_loc);
}
}
flush_put_bits(&pbc);
avio_wb32(pb, size + 8);
ffio_wfourcc(pb, "dec3");
avio_write(pb, buf, size);
av_free(buf);
end:
av_packet_unref(&info->pkt);
av_freep(&track->eac3_priv);
return size;
}
/**
* This function writes extradata "as is".
* Extradata must be formatted like a valid atom (with size and tag).
*/
static int mov_write_extradata_tag(AVIOContext *pb, MOVTrack *track)
{
avio_write(pb, track->enc->extradata, track->enc->extradata_size);
return track->enc->extradata_size;
}
static int mov_write_enda_tag(AVIOContext *pb)
{
avio_wb32(pb, 10);
ffio_wfourcc(pb, "enda");
avio_wb16(pb, 1); /* little endian */
return 10;
}
static int mov_write_enda_tag_be(AVIOContext *pb)
{
avio_wb32(pb, 10);
ffio_wfourcc(pb, "enda");
avio_wb16(pb, 0); /* big endian */
return 10;
}
static void put_descr(AVIOContext *pb, int tag, unsigned int size)
{
int i = 3;
avio_w8(pb, tag);
for (; i > 0; i--)
avio_w8(pb, (size >> (7 * i)) | 0x80);
avio_w8(pb, size & 0x7F);
}
static unsigned compute_avg_bitrate(MOVTrack *track)
{
uint64_t size = 0;
int i;
if (!track->track_duration)
return 0;
for (i = 0; i < track->entry; i++)
size += track->cluster[i].size;
return size * 8 * track->timescale / track->track_duration;
}
static int mov_write_esds_tag(AVIOContext *pb, MOVTrack *track) // Basic
{
AVCPBProperties *props;
int64_t pos = avio_tell(pb);
int decoder_specific_info_len = track->vos_len ? 5 + track->vos_len : 0;
unsigned avg_bitrate;
avio_wb32(pb, 0); // size
ffio_wfourcc(pb, "esds");
avio_wb32(pb, 0); // Version
// ES descriptor
put_descr(pb, 0x03, 3 + 5+13 + decoder_specific_info_len + 5+1);
avio_wb16(pb, track->track_id);
avio_w8(pb, 0x00); // flags (= no flags)
// DecoderConfig descriptor
put_descr(pb, 0x04, 13 + decoder_specific_info_len);
// Object type indication
if ((track->enc->codec_id == AV_CODEC_ID_MP2 ||
track->enc->codec_id == AV_CODEC_ID_MP3) &&
track->enc->sample_rate > 24000)
avio_w8(pb, 0x6B); // 11172-3
else
avio_w8(pb, ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id));
// the following fields is made of 6 bits to identify the streamtype (4 for video, 5 for audio)
// plus 1 bit to indicate upstream and 1 bit set to 1 (reserved)
if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
avio_w8(pb, (0x38 << 2) | 1); // flags (= NeroSubpicStream)
else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
avio_w8(pb, 0x15); // flags (= Audiostream)
else
avio_w8(pb, 0x11); // flags (= Visualstream)
props = (AVCPBProperties*)av_stream_get_side_data(track->st, AV_PKT_DATA_CPB_PROPERTIES,
NULL);
avio_wb24(pb, props ? props->buffer_size / 8 : 0); // Buffersize DB
avg_bitrate = compute_avg_bitrate(track);
avio_wb32(pb, props ? FFMAX3(props->max_bitrate, props->avg_bitrate, avg_bitrate) : FFMAX(track->enc->bit_rate, avg_bitrate)); // maxbitrate (FIXME should be max rate in any 1 sec window)
avio_wb32(pb, avg_bitrate);
if (track->vos_len) {
// DecoderSpecific info descriptor
put_descr(pb, 0x05, track->vos_len);
avio_write(pb, track->vos_data, track->vos_len);
}
// SL descriptor
put_descr(pb, 0x06, 1);
avio_w8(pb, 0x02);
return update_size(pb, pos);
}
static int mov_pcm_le_gt16(enum AVCodecID codec_id)
{
return codec_id == AV_CODEC_ID_PCM_S24LE ||
codec_id == AV_CODEC_ID_PCM_S32LE ||
codec_id == AV_CODEC_ID_PCM_F32LE ||
codec_id == AV_CODEC_ID_PCM_F64LE;
}
static int mov_pcm_be_gt16(enum AVCodecID codec_id)
{
return codec_id == AV_CODEC_ID_PCM_S24BE ||
codec_id == AV_CODEC_ID_PCM_S32BE ||
codec_id == AV_CODEC_ID_PCM_F32BE ||
codec_id == AV_CODEC_ID_PCM_F64BE;
}
static int mov_write_ms_tag(AVIOContext *pb, MOVTrack *track)
{
int ret;
int64_t pos = avio_tell(pb);
avio_wb32(pb, 0);
avio_wl32(pb, track->tag); // store it byteswapped
track->enc->codec_tag = av_bswap16(track->tag >> 16);
if ((ret = ff_put_wav_header(pb, track->enc, 0)) < 0)
return ret;
return update_size(pb, pos);
}
static int mov_write_wfex_tag(AVIOContext *pb, MOVTrack *track)
{
int ret;
int64_t pos = avio_tell(pb);
avio_wb32(pb, 0);
ffio_wfourcc(pb, "wfex");
if ((ret = ff_put_wav_header(pb, track->enc, FF_PUT_WAV_HEADER_FORCE_WAVEFORMATEX)) < 0)
return ret;
return update_size(pb, pos);
}
static int mov_write_chan_tag(AVIOContext *pb, MOVTrack *track)
{
uint32_t layout_tag, bitmap;
int64_t pos = avio_tell(pb);
layout_tag = ff_mov_get_channel_layout_tag(track->enc->codec_id,
track->enc->channel_layout,
&bitmap);
if (!layout_tag) {
av_log(track->enc, AV_LOG_WARNING, "not writing 'chan' tag due to "
"lack of channel information\n");
return 0;
}
if (track->multichannel_as_mono)
return 0;
avio_wb32(pb, 0); // Size
ffio_wfourcc(pb, "chan"); // Type
avio_w8(pb, 0); // Version
avio_wb24(pb, 0); // Flags
avio_wb32(pb, layout_tag); // mChannelLayoutTag
avio_wb32(pb, bitmap); // mChannelBitmap
avio_wb32(pb, 0); // mNumberChannelDescriptions
return update_size(pb, pos);
}
static int mov_write_wave_tag(AVIOContext *pb, MOVTrack *track)
{
int64_t pos = avio_tell(pb);
avio_wb32(pb, 0); /* size */
ffio_wfourcc(pb, "wave");
if (track->enc->codec_id != AV_CODEC_ID_QDM2) {
avio_wb32(pb, 12); /* size */
ffio_wfourcc(pb, "frma");
avio_wl32(pb, track->tag);
}
if (track->enc->codec_id == AV_CODEC_ID_AAC) {
/* useless atom needed by mplayer, ipod, not needed by quicktime */
avio_wb32(pb, 12); /* size */
ffio_wfourcc(pb, "mp4a");
avio_wb32(pb, 0);
mov_write_esds_tag(pb, track);
} else if (mov_pcm_le_gt16(track->enc->codec_id)) {
mov_write_enda_tag(pb);
} else if (mov_pcm_be_gt16(track->enc->codec_id)) {
mov_write_enda_tag_be(pb);
} else if (track->enc->codec_id == AV_CODEC_ID_AMR_NB) {
mov_write_amr_tag(pb, track);
} else if (track->enc->codec_id == AV_CODEC_ID_AC3) {
mov_write_ac3_tag(pb, track);
} else if (track->enc->codec_id == AV_CODEC_ID_EAC3) {
mov_write_eac3_tag(pb, track);
} else if (track->enc->codec_id == AV_CODEC_ID_ALAC ||
track->enc->codec_id == AV_CODEC_ID_QDM2) {
mov_write_extradata_tag(pb, track);
} else if (track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) {
mov_write_ms_tag(pb, track);
}
avio_wb32(pb, 8); /* size */
avio_wb32(pb, 0); /* null tag */
return update_size(pb, pos);
}
static int mov_write_dvc1_structs(MOVTrack *track, uint8_t *buf)
{
uint8_t *unescaped;
const uint8_t *start, *next, *end = track->vos_data + track->vos_len;
int unescaped_size, seq_found = 0;
int level = 0, interlace = 0;
int packet_seq = track->vc1_info.packet_seq;
int packet_entry = track->vc1_info.packet_entry;
int slices = track->vc1_info.slices;
PutBitContext pbc;
if (track->start_dts == AV_NOPTS_VALUE) {
/* No packets written yet, vc1_info isn't authoritative yet. */
/* Assume inline sequence and entry headers. */
packet_seq = packet_entry = 1;
av_log(NULL, AV_LOG_WARNING,
"moov atom written before any packets, unable to write correct "
"dvc1 atom. Set the delay_moov flag to fix this.\n");
}
unescaped = av_mallocz(track->vos_len + AV_INPUT_BUFFER_PADDING_SIZE);
if (!unescaped)
return AVERROR(ENOMEM);
start = find_next_marker(track->vos_data, end);
for (next = start; next < end; start = next) {
GetBitContext gb;
int size;
next = find_next_marker(start + 4, end);
size = next - start - 4;
if (size <= 0)
continue;
unescaped_size = vc1_unescape_buffer(start + 4, size, unescaped);
init_get_bits(&gb, unescaped, 8 * unescaped_size);
if (AV_RB32(start) == VC1_CODE_SEQHDR) {
int profile = get_bits(&gb, 2);
if (profile != PROFILE_ADVANCED) {
av_free(unescaped);
return AVERROR(ENOSYS);
}
seq_found = 1;
level = get_bits(&gb, 3);
/* chromaformat, frmrtq_postproc, bitrtq_postproc, postprocflag,
* width, height */
skip_bits_long(&gb, 2 + 3 + 5 + 1 + 2*12);
skip_bits(&gb, 1); /* broadcast */
interlace = get_bits1(&gb);
skip_bits(&gb, 4); /* tfcntrflag, finterpflag, reserved, psf */
}
}
if (!seq_found) {
av_free(unescaped);
return AVERROR(ENOSYS);
}
init_put_bits(&pbc, buf, 7);
/* VC1DecSpecStruc */
put_bits(&pbc, 4, 12); /* profile - advanced */
put_bits(&pbc, 3, level);
put_bits(&pbc, 1, 0); /* reserved */
/* VC1AdvDecSpecStruc */
put_bits(&pbc, 3, level);
put_bits(&pbc, 1, 0); /* cbr */
put_bits(&pbc, 6, 0); /* reserved */
put_bits(&pbc, 1, !interlace); /* no interlace */
put_bits(&pbc, 1, !packet_seq); /* no multiple seq */
put_bits(&pbc, 1, !packet_entry); /* no multiple entry */
put_bits(&pbc, 1, !slices); /* no slice code */
put_bits(&pbc, 1, 0); /* no bframe */
put_bits(&pbc, 1, 0); /* reserved */
/* framerate */
if (track->st->avg_frame_rate.num > 0 && track->st->avg_frame_rate.den > 0)
put_bits32(&pbc, track->st->avg_frame_rate.num / track->st->avg_frame_rate.den);
else
put_bits32(&pbc, 0xffffffff);
flush_put_bits(&pbc);
av_free(unescaped);
return 0;
}
static int mov_write_dvc1_tag(AVIOContext *pb, MOVTrack *track)
{
uint8_t buf[7] = { 0 };
int ret;
if ((ret = mov_write_dvc1_structs(track, buf)) < 0)
return ret;
avio_wb32(pb, track->vos_len + 8 + sizeof(buf));
ffio_wfourcc(pb, "dvc1");
avio_write(pb, buf, sizeof(buf));
avio_write(pb, track->vos_data, track->vos_len);
return 0;
}
static int mov_write_glbl_tag(AVIOContext *pb, MOVTrack *track)
{
avio_wb32(pb, track->vos_len + 8);
ffio_wfourcc(pb, "glbl");
avio_write(pb, track->vos_data, track->vos_len);
return 8 + track->vos_len;
}
/**
* Compute flags for 'lpcm' tag.
* See CoreAudioTypes and AudioStreamBasicDescription at Apple.
*/
static int mov_get_lpcm_flags(enum AVCodecID codec_id)
{
switch (codec_id) {
case AV_CODEC_ID_PCM_F32BE:
case AV_CODEC_ID_PCM_F64BE:
return 11;
case AV_CODEC_ID_PCM_F32LE:
case AV_CODEC_ID_PCM_F64LE:
return 9;
case AV_CODEC_ID_PCM_U8:
return 10;
case AV_CODEC_ID_PCM_S16BE:
case AV_CODEC_ID_PCM_S24BE:
case AV_CODEC_ID_PCM_S32BE:
return 14;
case AV_CODEC_ID_PCM_S8:
case AV_CODEC_ID_PCM_S16LE:
case AV_CODEC_ID_PCM_S24LE:
case AV_CODEC_ID_PCM_S32LE:
return 12;
default:
return 0;
}
}
static int get_cluster_duration(MOVTrack *track, int cluster_idx)
{
int64_t next_dts;
if (cluster_idx >= track->entry)
return 0;
if (cluster_idx + 1 == track->entry)
next_dts = track->track_duration + track->start_dts;
else
next_dts = track->cluster[cluster_idx + 1].dts;
next_dts -= track->cluster[cluster_idx].dts;
av_assert0(next_dts >= 0);
av_assert0(next_dts <= INT_MAX);
return next_dts;
}
static int get_samples_per_packet(MOVTrack *track)
{
int i, first_duration;
// return track->enc->frame_size;
/* use 1 for raw PCM */
if (!track->audio_vbr)
return 1;
/* check to see if duration is constant for all clusters */
if (!track->entry)
return 0;
first_duration = get_cluster_duration(track, 0);
for (i = 1; i < track->entry; i++) {
if (get_cluster_duration(track, i) != first_duration)
return 0;
}
return first_duration;
}
static int mov_write_audio_tag(AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
{
int64_t pos = avio_tell(pb);
int version = 0;
uint32_t tag = track->tag;
if (track->mode == MODE_MOV) {
if (track->timescale > UINT16_MAX) {
if (mov_get_lpcm_flags(track->enc->codec_id))
tag = AV_RL32("lpcm");
version = 2;
} else if (track->audio_vbr || mov_pcm_le_gt16(track->enc->codec_id) ||
mov_pcm_be_gt16(track->enc->codec_id) ||
track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
track->enc->codec_id == AV_CODEC_ID_QDM2) {
version = 1;
}
}
avio_wb32(pb, 0); /* size */
if (mov->encryption_scheme != MOV_ENC_NONE) {
ffio_wfourcc(pb, "enca");
} else {
avio_wl32(pb, tag); // store it byteswapped
}
avio_wb32(pb, 0); /* Reserved */
avio_wb16(pb, 0); /* Reserved */
avio_wb16(pb, 1); /* Data-reference index, XXX == 1 */
/* SoundDescription */
avio_wb16(pb, version); /* Version */
avio_wb16(pb, 0); /* Revision level */
avio_wb32(pb, 0); /* Reserved */
if (version == 2) {
avio_wb16(pb, 3);
avio_wb16(pb, 16);
avio_wb16(pb, 0xfffe);
avio_wb16(pb, 0);
avio_wb32(pb, 0x00010000);
avio_wb32(pb, 72);
avio_wb64(pb, av_double2int(track->enc->sample_rate));
avio_wb32(pb, track->enc->channels);
avio_wb32(pb, 0x7F000000);
avio_wb32(pb, av_get_bits_per_sample(track->enc->codec_id));
avio_wb32(pb, mov_get_lpcm_flags(track->enc->codec_id));
avio_wb32(pb, track->sample_size);
avio_wb32(pb, get_samples_per_packet(track));
} else {
if (track->mode == MODE_MOV) {
avio_wb16(pb, track->enc->channels);
if (track->enc->codec_id == AV_CODEC_ID_PCM_U8 ||
track->enc->codec_id == AV_CODEC_ID_PCM_S8)
avio_wb16(pb, 8); /* bits per sample */
else if (track->enc->codec_id == AV_CODEC_ID_ADPCM_G726)
avio_wb16(pb, track->enc->bits_per_coded_sample);
else
avio_wb16(pb, 16);
avio_wb16(pb, track->audio_vbr ? -2 : 0); /* compression ID */
} else { /* reserved for mp4/3gp */
avio_wb16(pb, 2);
avio_wb16(pb, 16);
avio_wb16(pb, 0);
}
avio_wb16(pb, 0); /* packet size (= 0) */
avio_wb16(pb, track->enc->sample_rate <= UINT16_MAX ?
track->enc->sample_rate : 0);
avio_wb16(pb, 0); /* Reserved */
}
if (version == 1) { /* SoundDescription V1 extended info */
if (mov_pcm_le_gt16(track->enc->codec_id) ||
mov_pcm_be_gt16(track->enc->codec_id))
avio_wb32(pb, 1); /* must be 1 for uncompressed formats */
else
avio_wb32(pb, track->enc->frame_size); /* Samples per packet */
avio_wb32(pb, track->sample_size / track->enc->channels); /* Bytes per packet */
avio_wb32(pb, track->sample_size); /* Bytes per frame */
avio_wb32(pb, 2); /* Bytes per sample */
}
if (track->mode == MODE_MOV &&
(track->enc->codec_id == AV_CODEC_ID_AAC ||
track->enc->codec_id == AV_CODEC_ID_AC3 ||
track->enc->codec_id == AV_CODEC_ID_EAC3 ||
track->enc->codec_id == AV_CODEC_ID_AMR_NB ||
track->enc->codec_id == AV_CODEC_ID_ALAC ||
track->enc->codec_id == AV_CODEC_ID_ADPCM_MS ||
track->enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV ||
track->enc->codec_id == AV_CODEC_ID_QDM2 ||
(mov_pcm_le_gt16(track->enc->codec_id) && version==1) ||
(mov_pcm_be_gt16(track->enc->codec_id) && version==1)))
mov_write_wave_tag(pb, track);
else if (track->tag == MKTAG('m','p','4','a'))
mov_write_esds_tag(pb, track);
else if (track->enc->codec_id == AV_CODEC_ID_AMR_NB)
mov_write_amr_tag(pb, track);
else if (track->enc->codec_id == AV_CODEC_ID_AC3)
mov_write_ac3_tag(pb, track);
else if (track->enc->codec_id == AV_CODEC_ID_EAC3)
mov_write_eac3_tag(pb, track);
else if (track->enc->codec_id == AV_CODEC_ID_ALAC)
mov_write_extradata_tag(pb, track);
else if (track->enc->codec_id == AV_CODEC_ID_WMAPRO)
mov_write_wfex_tag(pb, track);
else if (track->vos_len > 0)
mov_write_glbl_tag(pb, track);
if (track->mode == MODE_MOV && track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
mov_write_chan_tag(pb, track);
if (mov->encryption_scheme != MOV_ENC_NONE) {
ff_mov_cenc_write_sinf_tag(track, pb, mov->encryption_kid);
}
return update_size(pb, pos);
}
static int mov_write_d263_tag(AVIOContext *pb)
{
avio_wb32(pb, 0xf); /* size */
ffio_wfourcc(pb, "d263");
ffio_wfourcc(pb, "FFMP");
avio_w8(pb, 0); /* decoder version */
/* FIXME use AVCodecContext level/profile, when encoder will set values */
avio_w8(pb, 0xa); /* level */
avio_w8(pb, 0); /* profile */
return 0xf;
}
static int mov_write_avcc_tag(AVIOContext *pb, MOVTrack *track)
{
int64_t pos = avio_tell(pb);
avio_wb32(pb, 0);
ffio_wfourcc(pb, "avcC");
ff_isom_write_avcc(pb, track->vos_data, track->vos_len);
return update_size(pb, pos);
}
static int mov_write_hvcc_tag(AVIOContext *pb, MOVTrack *track)
{
int64_t pos = avio_tell(pb);
avio_wb32(pb, 0);
ffio_wfourcc(pb, "hvcC");
ff_isom_write_hvcc(pb, track->vos_data, track->vos_len, 0);
return update_size(pb, pos);
}
/* also used by all avid codecs (dv, imx, meridien) and their variants */
static int mov_write_avid_tag(AVIOContext *pb, MOVTrack *track)
{
int i;
int interlaced;
int cid;
if (track->vos_data && track->vos_len > 0x29) {
if (track->vos_data[0] == 0x00 &&
track->vos_data[1] == 0x00 &&
track->vos_data[2] == 0x02 &&
track->vos_data[3] == 0x80 &&
(track->vos_data[4] == 0x01 || track->vos_data[4] == 0x02)) {
/* looks like a DNxHD bit stream */
interlaced = (track->vos_data[5] & 2);
cid = AV_RB32(track->vos_data + 0x28);
} else {
av_log(NULL, AV_LOG_WARNING, "Could not locate DNxHD bit stream in vos_data\n");
return 0;
}
} else {
av_log(NULL, AV_LOG_WARNING, "Could not locate DNxHD bit stream, vos_data too small\n");
return 0;
}
avio_wb32(pb, 24); /* size */
ffio_wfourcc(pb, "ACLR");
ffio_wfourcc(pb, "ACLR");
ffio_wfourcc(pb, "0001");
if (track->enc->color_range == AVCOL_RANGE_MPEG || /* Legal range (16-235) */
track->enc->color_range == AVCOL_RANGE_UNSPECIFIED) {
avio_wb32(pb, 1); /* Corresponds to 709 in official encoder */
} else { /* Full range (0-255) */
avio_wb32(pb, 2); /* Corresponds to RGB in official encoder */
}
avio_wb32(pb, 0); /* unknown */
avio_wb32(pb, 24); /* size */
ffio_wfourcc(pb, "APRG");
ffio_wfourcc(pb, "APRG");
ffio_wfourcc(pb, "0001");
avio_wb32(pb, 1); /* unknown */
avio_wb32(pb, 0); /* unknown */
avio_wb32(pb, 120); /* size */
ffio_wfourcc(pb, "ARES");
ffio_wfourcc(pb, "ARES");
ffio_wfourcc(pb, "0001");
avio_wb32(pb, cid); /* dnxhd cid, some id ? */
avio_wb32(pb, track->enc->width);
/* values below are based on samples created with quicktime and avid codecs */
if (interlaced) {
avio_wb32(pb, track->enc->height / 2);
avio_wb32(pb, 2); /* unknown */
avio_wb32(pb, 0); /* unknown */
avio_wb32(pb, 4); /* unknown */
} else {
avio_wb32(pb, track->enc->height);
avio_wb32(pb, 1); /* unknown */
avio_wb32(pb, 0); /* unknown */
if (track->enc->height == 1080)
avio_wb32(pb, 5); /* unknown */
else
avio_wb32(pb, 6); /* unknown */
}
/* padding */
for (i = 0; i < 10; i++)
avio_wb64(pb, 0);
return 0;
}
static int mov_write_dpxe_tag(AVIOContext *pb, MOVTrack *track)
{
avio_wb32(pb, 12);
ffio_wfourcc(pb, "DpxE");
if (track->enc->extradata_size >= 12 &&
!memcmp(&track->enc->extradata[4], "DpxE", 4)) {
avio_wb32(pb, track->enc->extradata[11]);
} else {
avio_wb32(pb, 1);
}
return 0;
}
static int mp4_get_codec_tag(AVFormatContext *s, MOVTrack *track)
{
int tag = track->enc->codec_tag;
if (!ff_codec_get_tag(ff_mp4_obj_type, track->enc->codec_id))
return 0;
if (track->enc->codec_id == AV_CODEC_ID_H264) tag = MKTAG('a','v','c','1');
else if (track->enc->codec_id == AV_CODEC_ID_HEVC) tag = MKTAG('h','e','v','1');
else if (track->enc->codec_id == AV_CODEC_ID_AC3) tag = MKTAG('a','c','-','3');
else if (track->enc->codec_id == AV_CODEC_ID_EAC3) tag = MKTAG('e','c','-','3');
else if (track->enc->codec_id == AV_CODEC_ID_DIRAC) tag = MKTAG('d','r','a','c');
else if (track->enc->codec_id == AV_CODEC_ID_MOV_TEXT) tag = MKTAG('t','x','3','g');
else if (track->enc->codec_id == AV_CODEC_ID_VC1) tag = MKTAG('v','c','-','1');
else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) tag = MKTAG('m','p','4','v');
else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) tag = MKTAG('m','p','4','a');
else if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE) tag = MKTAG('m','p','4','s');
return tag;
}
static const AVCodecTag codec_ipod_tags[] = {
{ AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
{ AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
{ AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
{ AV_CODEC_ID_ALAC, MKTAG('a','l','a','c') },
{ AV_CODEC_ID_AC3, MKTAG('a','c','-','3') },
{ AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
{ AV_CODEC_ID_MOV_TEXT, MKTAG('t','e','x','t') },
{ AV_CODEC_ID_NONE, 0 },
};
static int ipod_get_codec_tag(AVFormatContext *s, MOVTrack *track)
{
int tag = track->enc->codec_tag;
// keep original tag for subs, ipod supports both formats
if (!(track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE &&
(tag == MKTAG('t', 'x', '3', 'g') ||
tag == MKTAG('t', 'e', 'x', 't'))))
tag = ff_codec_get_tag(codec_ipod_tags, track->enc->codec_id);
if (!av_match_ext(s->filename, "m4a") &&
!av_match_ext(s->filename, "m4b") &&
!av_match_ext(s->filename, "m4v"))
av_log(s, AV_LOG_WARNING, "Warning, extension is not .m4a, .m4v nor .m4b "
"Quicktime/Ipod might not play the file\n");
return tag;
}
static int mov_get_dv_codec_tag(AVFormatContext *s, MOVTrack *track)
{
int tag;
if (track->enc->width == 720) { /* SD */
if (track->enc->height == 480) { /* NTSC */
if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','n');
else tag = MKTAG('d','v','c',' ');
}else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','p');
else if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P) tag = MKTAG('d','v','c','p');
else tag = MKTAG('d','v','p','p');
} else if (track->enc->height == 720) { /* HD 720 line */
if (track->st->time_base.den == 50) tag = MKTAG('d','v','h','q');
else tag = MKTAG('d','v','h','p');
} else if (track->enc->height == 1080) { /* HD 1080 line */
if (track->st->time_base.den == 25) tag = MKTAG('d','v','h','5');
else tag = MKTAG('d','v','h','6');
} else {
av_log(s, AV_LOG_ERROR, "unsupported height for dv codec\n");
return 0;
}
return tag;
}
static AVRational find_fps(AVFormatContext *s, AVStream *st)
{
AVRational rate = {st->codec->time_base.den, st->codec->time_base.num};
/* if the codec time base makes no sense, try to fallback on stream frame rate */
if (av_timecode_check_frame_rate(rate) < 0) {
av_log(s, AV_LOG_DEBUG, "timecode: tbc=%d/%d invalid, fallback on %d/%d\n",
rate.num, rate.den, st->avg_frame_rate.num, st->avg_frame_rate.den);
rate = st->avg_frame_rate;
}
return rate;
}
static int mov_get_mpeg2_xdcam_codec_tag(AVFormatContext *s, MOVTrack *track)
{
int tag = track->enc->codec_tag;
int interlaced = track->enc->field_order > AV_FIELD_PROGRESSIVE;
AVStream *st = track->st;
int rate = av_q2d(find_fps(s, st));
if (!tag)
tag = MKTAG('m', '2', 'v', '1'); //fallback tag
if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P) {
if (track->enc->width == 1280 && track->enc->height == 720) {
if (!interlaced) {
if (rate == 24) tag = MKTAG('x','d','v','4');
else if (rate == 25) tag = MKTAG('x','d','v','5');
else if (rate == 30) tag = MKTAG('x','d','v','1');
else if (rate == 50) tag = MKTAG('x','d','v','a');
else if (rate == 60) tag = MKTAG('x','d','v','9');
}
} else if (track->enc->width == 1440 && track->enc->height == 1080) {
if (!interlaced) {
if (rate == 24) tag = MKTAG('x','d','v','6');
else if (rate == 25) tag = MKTAG('x','d','v','7');
else if (rate == 30) tag = MKTAG('x','d','v','8');
} else {
if (rate == 25) tag = MKTAG('x','d','v','3');
else if (rate == 30) tag = MKTAG('x','d','v','2');
}
} else if (track->enc->width == 1920 && track->enc->height == 1080) {
if (!interlaced) {
if (rate == 24) tag = MKTAG('x','d','v','d');
else if (rate == 25) tag = MKTAG('x','d','v','e');
else if (rate == 30) tag = MKTAG('x','d','v','f');
} else {
if (rate == 25) tag = MKTAG('x','d','v','c');
else if (rate == 30) tag = MKTAG('x','d','v','b');
}
}
} else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) {
if (track->enc->width == 1280 && track->enc->height == 720) {
if (!interlaced) {
if (rate == 24) tag = MKTAG('x','d','5','4');
else if (rate == 25) tag = MKTAG('x','d','5','5');
else if (rate == 30) tag = MKTAG('x','d','5','1');
else if (rate == 50) tag = MKTAG('x','d','5','a');
else if (rate == 60) tag = MKTAG('x','d','5','9');
}
} else if (track->enc->width == 1920 && track->enc->height == 1080) {
if (!interlaced) {
if (rate == 24) tag = MKTAG('x','d','5','d');
else if (rate == 25) tag = MKTAG('x','d','5','e');
else if (rate == 30) tag = MKTAG('x','d','5','f');
} else {
if (rate == 25) tag = MKTAG('x','d','5','c');
else if (rate == 30) tag = MKTAG('x','d','5','b');
}
}
}
return tag;
}
static int mov_get_h264_codec_tag(AVFormatContext *s, MOVTrack *track)
{
int tag = track->enc->codec_tag;
int interlaced = track->enc->field_order > AV_FIELD_PROGRESSIVE;
AVStream *st = track->st;
int rate = av_q2d(find_fps(s, st));
if (!tag)
tag = MKTAG('a', 'v', 'c', 'i'); //fallback tag
if (track->enc->pix_fmt == AV_PIX_FMT_YUV420P10) {
if (track->enc->width == 960 && track->enc->height == 720) {
if (!interlaced) {
if (rate == 24) tag = MKTAG('a','i','5','p');
else if (rate == 25) tag = MKTAG('a','i','5','q');
else if (rate == 30) tag = MKTAG('a','i','5','p');
else if (rate == 50) tag = MKTAG('a','i','5','q');
else if (rate == 60) tag = MKTAG('a','i','5','p');
}
} else if (track->enc->width == 1440 && track->enc->height == 1080) {
if (!interlaced) {
if (rate == 24) tag = MKTAG('a','i','5','3');
else if (rate == 25) tag = MKTAG('a','i','5','2');
else if (rate == 30) tag = MKTAG('a','i','5','3');
} else {
if (rate == 50) tag = MKTAG('a','i','5','5');
else if (rate == 60) tag = MKTAG('a','i','5','6');
}
}
} else if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P10) {
if (track->enc->width == 1280 && track->enc->height == 720) {
if (!interlaced) {
if (rate == 24) tag = MKTAG('a','i','1','p');
else if (rate == 25) tag = MKTAG('a','i','1','q');
else if (rate == 30) tag = MKTAG('a','i','1','p');
else if (rate == 50) tag = MKTAG('a','i','1','q');
else if (rate == 60) tag = MKTAG('a','i','1','p');
}
} else if (track->enc->width == 1920 && track->enc->height == 1080) {
if (!interlaced) {
if (rate == 24) tag = MKTAG('a','i','1','3');
else if (rate == 25) tag = MKTAG('a','i','1','2');
else if (rate == 30) tag = MKTAG('a','i','1','3');
} else {
if (rate == 25) tag = MKTAG('a','i','1','5');
else if (rate == 50) tag = MKTAG('a','i','1','5');
else if (rate == 60) tag = MKTAG('a','i','1','6');
}
} else if ( track->enc->width == 4096 && track->enc->height == 2160
|| track->enc->width == 3840 && track->enc->height == 2160
|| track->enc->width == 2048 && track->enc->height == 1080) {
tag = MKTAG('a','i','v','x');
}
}
return tag;
}
static const struct {
enum AVPixelFormat pix_fmt;
uint32_t tag;
unsigned bps;
} mov_pix_fmt_tags[] = {
{ AV_PIX_FMT_YUYV422, MKTAG('y','u','v','2'), 0 },
{ AV_PIX_FMT_YUYV422, MKTAG('y','u','v','s'), 0 },
{ AV_PIX_FMT_UYVY422, MKTAG('2','v','u','y'), 0 },
{ AV_PIX_FMT_RGB555BE,MKTAG('r','a','w',' '), 16 },
{ AV_PIX_FMT_RGB555LE,MKTAG('L','5','5','5'), 16 },
{ AV_PIX_FMT_RGB565LE,MKTAG('L','5','6','5'), 16 },
{ AV_PIX_FMT_RGB565BE,MKTAG('B','5','6','5'), 16 },
{ AV_PIX_FMT_GRAY16BE,MKTAG('b','1','6','g'), 16 },
{ AV_PIX_FMT_RGB24, MKTAG('r','a','w',' '), 24 },
{ AV_PIX_FMT_BGR24, MKTAG('2','4','B','G'), 24 },
{ AV_PIX_FMT_ARGB, MKTAG('r','a','w',' '), 32 },
{ AV_PIX_FMT_BGRA, MKTAG('B','G','R','A'), 32 },
{ AV_PIX_FMT_RGBA, MKTAG('R','G','B','A'), 32 },
{ AV_PIX_FMT_ABGR, MKTAG('A','B','G','R'), 32 },
{ AV_PIX_FMT_RGB48BE, MKTAG('b','4','8','r'), 48 },
};
static int mov_get_rawvideo_codec_tag(AVFormatContext *s, MOVTrack *track)
{
int tag = track->enc->codec_tag;
int i;
enum AVPixelFormat pix_fmt;
for (i = 0; i < FF_ARRAY_ELEMS(mov_pix_fmt_tags); i++) {
if (track->enc->pix_fmt == mov_pix_fmt_tags[i].pix_fmt) {
tag = mov_pix_fmt_tags[i].tag;
track->enc->bits_per_coded_sample = mov_pix_fmt_tags[i].bps;
if (track->enc->codec_tag == mov_pix_fmt_tags[i].tag)
break;
}
}
pix_fmt = avpriv_find_pix_fmt(avpriv_pix_fmt_bps_mov,
track->enc->bits_per_coded_sample);
if (tag == MKTAG('r','a','w',' ') &&
track->enc->pix_fmt != pix_fmt &&
track->enc->pix_fmt != AV_PIX_FMT_NONE)
av_log(s, AV_LOG_ERROR, "%s rawvideo cannot be written to mov, output file will be unreadable\n",
av_get_pix_fmt_name(track->enc->pix_fmt));
return tag;
}
static int mov_get_codec_tag(AVFormatContext *s, MOVTrack *track)
{
int tag = track->enc->codec_tag;
if (!tag || (s->strict_std_compliance >= FF_COMPLIANCE_NORMAL &&
(track->enc->codec_id == AV_CODEC_ID_DVVIDEO ||
track->enc->codec_id == AV_CODEC_ID_RAWVIDEO ||
track->enc->codec_id == AV_CODEC_ID_H263 ||
track->enc->codec_id == AV_CODEC_ID_H264 ||
track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO ||
av_get_bits_per_sample(track->enc->codec_id)))) { // pcm audio
if (track->enc->codec_id == AV_CODEC_ID_DVVIDEO)
tag = mov_get_dv_codec_tag(s, track);
else if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO)
tag = mov_get_rawvideo_codec_tag(s, track);
else if (track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO)
tag = mov_get_mpeg2_xdcam_codec_tag(s, track);
else if (track->enc->codec_id == AV_CODEC_ID_H264)
tag = mov_get_h264_codec_tag(s, track);
else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
tag = ff_codec_get_tag(ff_codec_movvideo_tags, track->enc->codec_id);
if (!tag) { // if no mac fcc found, try with Microsoft tags
tag = ff_codec_get_tag(ff_codec_bmp_tags, track->enc->codec_id);
if (tag)
av_log(s, AV_LOG_WARNING, "Using MS style video codec tag, "
"the file may be unplayable!\n");
}
} else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
tag = ff_codec_get_tag(ff_codec_movaudio_tags, track->enc->codec_id);
if (!tag) { // if no mac fcc found, try with Microsoft tags
int ms_tag = ff_codec_get_tag(ff_codec_wav_tags, track->enc->codec_id);
if (ms_tag) {
tag = MKTAG('m', 's', ((ms_tag >> 8) & 0xff), (ms_tag & 0xff));
av_log(s, AV_LOG_WARNING, "Using MS style audio codec tag, "
"the file may be unplayable!\n");
}
}
} else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
tag = ff_codec_get_tag(ff_codec_movsubtitle_tags, track->enc->codec_id);
}
return tag;
}
static const AVCodecTag codec_3gp_tags[] = {
{ AV_CODEC_ID_H263, MKTAG('s','2','6','3') },
{ AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
{ AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') },
{ AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
{ AV_CODEC_ID_AMR_NB, MKTAG('s','a','m','r') },
{ AV_CODEC_ID_AMR_WB, MKTAG('s','a','w','b') },
{ AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') },
{ AV_CODEC_ID_NONE, 0 },
};
static const AVCodecTag codec_f4v_tags[] = { // XXX: add GIF/PNG/JPEG?
{ AV_CODEC_ID_MP3, MKTAG('.','m','p','3') },
{ AV_CODEC_ID_AAC, MKTAG('m','p','4','a') },
{ AV_CODEC_ID_H264, MKTAG('a','v','c','1') },
{ AV_CODEC_ID_VP6A, MKTAG('V','P','6','A') },
{ AV_CODEC_ID_VP6F, MKTAG('V','P','6','F') },
{ AV_CODEC_ID_NONE, 0 },
};
static int mov_find_codec_tag(AVFormatContext *s, MOVTrack *track)
{
int tag;
if (track->mode == MODE_MP4 || track->mode == MODE_PSP)
tag = mp4_get_codec_tag(s, track);
else if (track->mode == MODE_ISM) {
tag = mp4_get_codec_tag(s, track);
if (!tag && track->enc->codec_id == AV_CODEC_ID_WMAPRO)
tag = MKTAG('w', 'm', 'a', ' ');
} else if (track->mode == MODE_IPOD)
tag = ipod_get_codec_tag(s, track);
else if (track->mode & MODE_3GP)
tag = ff_codec_get_tag(codec_3gp_tags, track->enc->codec_id);
else if (track->mode == MODE_F4V)
tag = ff_codec_get_tag(codec_f4v_tags, track->enc->codec_id);
else
tag = mov_get_codec_tag(s, track);
return tag;
}
/** Write uuid atom.
* Needed to make file play in iPods running newest firmware
* goes after avcC atom in moov.trak.mdia.minf.stbl.stsd.avc1
*/
static int mov_write_uuid_tag_ipod(AVIOContext *pb)
{
avio_wb32(pb, 28);
ffio_wfourcc(pb, "uuid");
avio_wb32(pb, 0x6b6840f2);
avio_wb32(pb, 0x5f244fc5);
avio_wb32(pb, 0xba39a51b);
avio_wb32(pb, 0xcf0323f3);
avio_wb32(pb, 0x0);
return 28;
}
static const uint16_t fiel_data[] = {
0x0000, 0x0100, 0x0201, 0x0206, 0x0209, 0x020e
};
static int mov_write_fiel_tag(AVIOContext *pb, MOVTrack *track)
{
unsigned mov_field_order = 0;
if (track->enc->field_order < FF_ARRAY_ELEMS(fiel_data))
mov_field_order = fiel_data[track->enc->field_order];
else
return 0;
avio_wb32(pb, 10);
ffio_wfourcc(pb, "fiel");
avio_wb16(pb, mov_field_order);
return 10;
}
static int mov_write_subtitle_tag(AVIOContext *pb, MOVTrack *track)
{
int64_t pos = avio_tell(pb);
avio_wb32(pb, 0); /* size */
avio_wl32(pb, track->tag); // store it byteswapped
avio_wb32(pb, 0); /* Reserved */
avio_wb16(pb, 0); /* Reserved */
avio_wb16(pb, 1); /* Data-reference index */
if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
mov_write_esds_tag(pb, track);
else if (track->enc->extradata_size)
avio_write(pb, track->enc->extradata, track->enc->extradata_size);
return update_size(pb, pos);
}
static int mov_write_pasp_tag(AVIOContext *pb, MOVTrack *track)
{
AVRational sar;
av_reduce(&sar.num, &sar.den, track->enc->sample_aspect_ratio.num,
track->enc->sample_aspect_ratio.den, INT_MAX);
avio_wb32(pb, 16);
ffio_wfourcc(pb, "pasp");
avio_wb32(pb, sar.num);
avio_wb32(pb, sar.den);
return 16;
}
static int mov_write_gama_tag(AVIOContext *pb, MOVTrack *track, double gamma)
{
uint32_t gama = 0;
if (gamma <= 0.0)
{
gamma = avpriv_get_gamma_from_trc(track->enc->color_trc);
}
av_log(pb, AV_LOG_DEBUG, "gamma value %g\n", gamma);
if (gamma > 1e-6) {
gama = (uint32_t)lrint((double)(1<<16) * gamma);
av_log(pb, AV_LOG_DEBUG, "writing gama value %d\n", gama);
av_assert0(track->mode == MODE_MOV);
avio_wb32(pb, 12);
ffio_wfourcc(pb, "gama");
avio_wb32(pb, gama);
return 12;
}
else {
av_log(pb, AV_LOG_WARNING, "gamma value unknown, unable to write gama atom\n");
}
return 0;
}
static int mov_write_colr_tag(AVIOContext *pb, MOVTrack *track)
{
// Ref (MOV): https://developer.apple.com/library/mac/technotes/tn2162/_index.html#//apple_ref/doc/uid/DTS40013070-CH1-TNTAG9
// Ref (MP4): ISO/IEC 14496-12:2012
if (track->enc->color_primaries == AVCOL_PRI_UNSPECIFIED &&
track->enc->color_trc == AVCOL_TRC_UNSPECIFIED &&
track->enc->colorspace == AVCOL_SPC_UNSPECIFIED) {
if ((track->enc->width >= 1920 && track->enc->height >= 1080)
|| (track->enc->width == 1280 && track->enc->height == 720)) {
av_log(NULL, AV_LOG_WARNING, "color primaries unspecified, assuming bt709\n");
track->enc->color_primaries = AVCOL_PRI_BT709;
} else if (track->enc->width == 720 && track->height == 576) {
av_log(NULL, AV_LOG_WARNING, "color primaries unspecified, assuming bt470bg\n");
track->enc->color_primaries = AVCOL_PRI_BT470BG;
} else if (track->enc->width == 720 &&
(track->height == 486 || track->height == 480)) {
av_log(NULL, AV_LOG_WARNING, "color primaries unspecified, assuming smpte170\n");
track->enc->color_primaries = AVCOL_PRI_SMPTE170M;
} else {
av_log(NULL, AV_LOG_WARNING, "color primaries unspecified, unable to assume anything\n");
}
switch (track->enc->color_primaries) {
case AVCOL_PRI_BT709:
track->enc->color_trc = AVCOL_TRC_BT709;
track->enc->colorspace = AVCOL_SPC_BT709;
break;
case AVCOL_PRI_SMPTE170M:
case AVCOL_PRI_BT470BG:
track->enc->color_trc = AVCOL_TRC_BT709;
track->enc->colorspace = AVCOL_SPC_SMPTE170M;
break;
}
}
/* We should only ever be called by MOV or MP4. */
av_assert0(track->mode == MODE_MOV || track->mode == MODE_MP4);
avio_wb32(pb, 18 + (track->mode == MODE_MP4));
ffio_wfourcc(pb, "colr");
if (track->mode == MODE_MP4)
ffio_wfourcc(pb, "nclx");
else
ffio_wfourcc(pb, "nclc");
switch (track->enc->color_primaries) {
case AVCOL_PRI_BT709: avio_wb16(pb, 1); break;
case AVCOL_PRI_SMPTE170M:
case AVCOL_PRI_SMPTE240M: avio_wb16(pb, 6); break;
case AVCOL_PRI_BT470BG: avio_wb16(pb, 5); break;
default: avio_wb16(pb, 2);
}
switch (track->enc->color_trc) {
case AVCOL_TRC_BT709: avio_wb16(pb, 1); break;
case AVCOL_TRC_SMPTE170M: avio_wb16(pb, 1); break; // remapped
case AVCOL_TRC_SMPTE240M: avio_wb16(pb, 7); break;
default: avio_wb16(pb, 2);
}
switch (track->enc->colorspace) {
case AVCOL_SPC_BT709: avio_wb16(pb, 1); break;
case AVCOL_SPC_BT470BG:
case AVCOL_SPC_SMPTE170M: avio_wb16(pb, 6); break;
case AVCOL_SPC_SMPTE240M: avio_wb16(pb, 7); break;
default: avio_wb16(pb, 2);
}
if (track->mode == MODE_MP4) {
int full_range = track->enc->color_range == AVCOL_RANGE_JPEG;
avio_w8(pb, full_range << 7);
return 19;
} else {
return 18;
}
}
static void find_compressor(char * compressor_name, int len, MOVTrack *track)
{
AVDictionaryEntry *encoder;
int xdcam_res = (track->enc->width == 1280 && track->enc->height == 720)
|| (track->enc->width == 1440 && track->enc->height == 1080)
|| (track->enc->width == 1920 && track->enc->height == 1080);
if (track->mode == MODE_MOV &&
(encoder = av_dict_get(track->st->metadata, "encoder", NULL, 0))) {
av_strlcpy(compressor_name, encoder->value, 32);
} else if (track->enc->codec_id == AV_CODEC_ID_MPEG2VIDEO && xdcam_res) {
int interlaced = track->enc->field_order > AV_FIELD_PROGRESSIVE;
AVStream *st = track->st;
int rate = av_q2d(find_fps(NULL, st));
av_strlcatf(compressor_name, len, "XDCAM");
if (track->enc->pix_fmt == AV_PIX_FMT_YUV422P) {
av_strlcatf(compressor_name, len, " HD422");
} else if(track->enc->width == 1440) {
av_strlcatf(compressor_name, len, " HD");
} else
av_strlcatf(compressor_name, len, " EX");
av_strlcatf(compressor_name, len, " %d%c", track->enc->height, interlaced ? 'i' : 'p');
av_strlcatf(compressor_name, len, "%d", rate * (interlaced + 1));
}
}
static int mov_write_video_tag(AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
{
int64_t pos = avio_tell(pb);
char compressor_name[32] = { 0 };
int avid = 0;
avio_wb32(pb, 0); /* size */
if (mov->encryption_scheme != MOV_ENC_NONE) {
ffio_wfourcc(pb, "encv");
} else {
avio_wl32(pb, track->tag); // store it byteswapped
}
avio_wb32(pb, 0); /* Reserved */
avio_wb16(pb, 0); /* Reserved */
avio_wb16(pb, 1); /* Data-reference index */
avio_wb16(pb, 0); /* Codec stream version */
avio_wb16(pb, 0); /* Codec stream revision (=0) */
if (track->mode == MODE_MOV) {
ffio_wfourcc(pb, "FFMP"); /* Vendor */
if (track->enc->codec_id == AV_CODEC_ID_RAWVIDEO) {
avio_wb32(pb, 0); /* Temporal Quality */
avio_wb32(pb, 0x400); /* Spatial Quality = lossless*/
} else {
avio_wb32(pb, 0x200); /* Temporal Quality = normal */
avio_wb32(pb, 0x200); /* Spatial Quality = normal */
}
} else {
avio_wb32(pb, 0); /* Reserved */
avio_wb32(pb, 0); /* Reserved */
avio_wb32(pb, 0); /* Reserved */
}
avio_wb16(pb, track->enc->width); /* Video width */
avio_wb16(pb, track->height); /* Video height */
avio_wb32(pb, 0x00480000); /* Horizontal resolution 72dpi */
avio_wb32(pb, 0x00480000); /* Vertical resolution 72dpi */
avio_wb32(pb, 0); /* Data size (= 0) */
avio_wb16(pb, 1); /* Frame count (= 1) */
/* FIXME not sure, ISO 14496-1 draft where it shall be set to 0 */
find_compressor(compressor_name, 32, track);
avio_w8(pb, strlen(compressor_name));
avio_write(pb, compressor_name, 31);
if (track->mode == MODE_MOV && track->enc->bits_per_coded_sample)
avio_wb16(pb, track->enc->bits_per_coded_sample);
else
avio_wb16(pb, 0x18); /* Reserved */
avio_wb16(pb, 0xffff); /* Reserved */
if (track->tag == MKTAG('m','p','4','v'))
mov_write_esds_tag(pb, track);
else if (track->enc->codec_id == AV_CODEC_ID_H263)
mov_write_d263_tag(pb);
else if (track->enc->codec_id == AV_CODEC_ID_AVUI ||
track->enc->codec_id == AV_CODEC_ID_SVQ3) {
mov_write_extradata_tag(pb, track);
avio_wb32(pb, 0);
} else if (track->enc->codec_id == AV_CODEC_ID_DNXHD) {
mov_write_avid_tag(pb, track);
avid = 1;
} else if (track->enc->codec_id == AV_CODEC_ID_HEVC)
mov_write_hvcc_tag(pb, track);
else if (track->enc->codec_id == AV_CODEC_ID_H264 && !TAG_IS_AVCI(track->tag)) {
mov_write_avcc_tag(pb, track);
if (track->mode == MODE_IPOD)
mov_write_uuid_tag_ipod(pb);
} else if (track->enc->codec_id == AV_CODEC_ID_VC1 && track->vos_len > 0)
mov_write_dvc1_tag(pb, track);
else if (track->enc->codec_id == AV_CODEC_ID_VP6F ||
track->enc->codec_id == AV_CODEC_ID_VP6A) {
/* Don't write any potential extradata here - the cropping
* is signalled via the normal width/height fields. */
} else if (track->enc->codec_id == AV_CODEC_ID_R10K) {
if (track->enc->codec_tag == MKTAG('R','1','0','k'))
mov_write_dpxe_tag(pb, track);
} else if (track->vos_len > 0)
mov_write_glbl_tag(pb, track);
if (track->enc->codec_id != AV_CODEC_ID_H264 &&
track->enc->codec_id != AV_CODEC_ID_MPEG4 &&
track->enc->codec_id != AV_CODEC_ID_DNXHD)
if (track->enc->field_order != AV_FIELD_UNKNOWN)
mov_write_fiel_tag(pb, track);
if (mov->flags & FF_MOV_FLAG_WRITE_GAMA) {
if (track->mode == MODE_MOV)
mov_write_gama_tag(pb, track, mov->gamma);
else
av_log(mov->fc, AV_LOG_WARNING, "Not writing 'gama' atom. Format is not MOV.\n");
}
if (mov->flags & FF_MOV_FLAG_WRITE_COLR) {
if (track->mode == MODE_MOV || track->mode == MODE_MP4)
mov_write_colr_tag(pb, track);
else
av_log(mov->fc, AV_LOG_WARNING, "Not writing 'colr' atom. Format is not MOV or MP4.\n");
}
if (track->enc->sample_aspect_ratio.den && track->enc->sample_aspect_ratio.num &&
track->enc->sample_aspect_ratio.den != track->enc->sample_aspect_ratio.num) {
mov_write_pasp_tag(pb, track);
}
if (mov->encryption_scheme != MOV_ENC_NONE) {
ff_mov_cenc_write_sinf_tag(track, pb, mov->encryption_kid);
}
/* extra padding for avid stsd */
/* https://developer.apple.com/library/mac/documentation/QuickTime/QTFF/QTFFChap2/qtff2.html#//apple_ref/doc/uid/TP40000939-CH204-61112 */
if (avid)
avio_wb32(pb, 0);
return update_size(pb, pos);
}
static int mov_write_rtp_tag(AVIOContext *pb, MOVTrack *track)
{
int64_t pos = avio_tell(pb);
avio_wb32(pb, 0); /* size */
ffio_wfourcc(pb, "rtp ");
avio_wb32(pb, 0); /* Reserved */
avio_wb16(pb, 0); /* Reserved */
avio_wb16(pb, 1); /* Data-reference index */
avio_wb16(pb, 1); /* Hint track version */
avio_wb16(pb, 1); /* Highest compatible version */
avio_wb32(pb, track->max_packet_size); /* Max packet size */
avio_wb32(pb, 12); /* size */
ffio_wfourcc(pb, "tims");
avio_wb32(pb, track->timescale);
return update_size(pb, pos);
}
static int mov_write_source_reference_tag(AVIOContext *pb, MOVTrack *track, const char *reel_name)
{
uint64_t str_size =strlen(reel_name);
int64_t pos = avio_tell(pb);
if (str_size >= UINT16_MAX){
av_log(NULL, AV_LOG_ERROR, "reel_name length %"PRIu64" is too large\n", str_size);
avio_wb16(pb, 0);
return AVERROR(EINVAL);
}
avio_wb32(pb, 0); /* size */
ffio_wfourcc(pb, "name"); /* Data format */
avio_wb16(pb, str_size); /* string size */
avio_wb16(pb, track->language); /* langcode */
avio_write(pb, reel_name, str_size); /* reel name */
return update_size(pb,pos);
}
static int mov_write_tmcd_tag(AVIOContext *pb, MOVTrack *track)
{
int64_t pos = avio_tell(pb);
#if 1
int frame_duration = av_rescale(track->timescale, track->enc->time_base.num, track->enc->time_base.den);
int nb_frames = ROUNDED_DIV(track->enc->time_base.den, track->enc->time_base.num);
AVDictionaryEntry *t = NULL;
if (nb_frames > 255) {
av_log(NULL, AV_LOG_ERROR, "fps %d is too large\n", nb_frames);
return AVERROR(EINVAL);
}
avio_wb32(pb, 0); /* size */
ffio_wfourcc(pb, "tmcd"); /* Data format */
avio_wb32(pb, 0); /* Reserved */
avio_wb32(pb, 1); /* Data reference index */
avio_wb32(pb, 0); /* Flags */
avio_wb32(pb, track->timecode_flags); /* Flags (timecode) */
avio_wb32(pb, track->timescale); /* Timescale */
avio_wb32(pb, frame_duration); /* Frame duration */
avio_w8(pb, nb_frames); /* Number of frames */
avio_w8(pb, 0); /* Reserved */
if (track->st)
t = av_dict_get(track->st->metadata, "reel_name", NULL, 0);
if (t && utf8len(t->value))
mov_write_source_reference_tag(pb, track, t->value);
else
avio_wb16(pb, 0); /* zero size */
#else
avio_wb32(pb, 0); /* size */
ffio_wfourcc(pb, "tmcd"); /* Data format */
avio_wb32(pb, 0); /* Reserved */
avio_wb32(pb, 1); /* Data reference index */
if (track->enc->extradata_size)
avio_write(pb, track->enc->extradata, track->enc->extradata_size);
#endif
return update_size(pb, pos);
}
static int mov_write_stsd_tag(AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
{
int64_t pos = avio_tell(pb);
avio_wb32(pb, 0); /* size */
ffio_wfourcc(pb, "stsd");
avio_wb32(pb, 0); /* version & flags */
avio_wb32(pb, 1); /* entry count */
if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
mov_write_video_tag(pb, mov, track);
else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
mov_write_audio_tag(pb, mov, track);
else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE)
mov_write_subtitle_tag(pb, track);
else if (track->enc->codec_tag == MKTAG('r','t','p',' '))
mov_write_rtp_tag(pb, track);
else if (track->enc->codec_tag == MKTAG('t','m','c','d'))
mov_write_tmcd_tag(pb, track);
return update_size(pb, pos);
}
static int mov_write_ctts_tag(AVIOContext *pb, MOVTrack *track)
{
MOVStts *ctts_entries;
uint32_t entries = 0;
uint32_t atom_size;
int i;
ctts_entries = av_malloc_array((track->entry + 1), sizeof(*ctts_entries)); /* worst case */
if (!ctts_entries)
return AVERROR(ENOMEM);
ctts_entries[0].count = 1;
ctts_entries[0].duration = track->cluster[0].cts;
for (i = 1; i < track->entry; i++) {
if (track->cluster[i].cts == ctts_entries[entries].duration) {
ctts_entries[entries].count++; /* compress */
} else {
entries++;
ctts_entries[entries].duration = track->cluster[i].cts;
ctts_entries[entries].count = 1;
}
}
entries++; /* last one */
atom_size = 16 + (entries * 8);
avio_wb32(pb, atom_size); /* size */
ffio_wfourcc(pb, "ctts");
avio_wb32(pb, 0); /* version & flags */
avio_wb32(pb, entries); /* entry count */
for (i = 0; i < entries; i++) {
avio_wb32(pb, ctts_entries[i].count);
avio_wb32(pb, ctts_entries[i].duration);
}
av_free(ctts_entries);
return atom_size;
}
/* Time to sample atom */
static int mov_write_stts_tag(AVIOContext *pb, MOVTrack *track)
{
MOVStts *stts_entries = NULL;
uint32_t entries = -1;
uint32_t atom_size;
int i;
if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO && !track->audio_vbr) {
stts_entries = av_malloc(sizeof(*stts_entries)); /* one entry */
if (!stts_entries)
return AVERROR(ENOMEM);
stts_entries[0].count = track->sample_count;
stts_entries[0].duration = 1;
entries = 1;
} else {
if (track->entry) {
stts_entries = av_malloc_array(track->entry, sizeof(*stts_entries)); /* worst case */
if (!stts_entries)
return AVERROR(ENOMEM);
}
for (i = 0; i < track->entry; i++) {
int duration = get_cluster_duration(track, i);
if (i && duration == stts_entries[entries].duration) {
stts_entries[entries].count++; /* compress */
} else {
entries++;
stts_entries[entries].duration = duration;
stts_entries[entries].count = 1;
}
}
entries++; /* last one */
}
atom_size = 16 + (entries * 8);
avio_wb32(pb, atom_size); /* size */
ffio_wfourcc(pb, "stts");
avio_wb32(pb, 0); /* version & flags */
avio_wb32(pb, entries); /* entry count */
for (i = 0; i < entries; i++) {
avio_wb32(pb, stts_entries[i].count);
avio_wb32(pb, stts_entries[i].duration);
}
av_free(stts_entries);
return atom_size;
}
static int mov_write_dref_tag(AVIOContext *pb)
{
avio_wb32(pb, 28); /* size */
ffio_wfourcc(pb, "dref");
avio_wb32(pb, 0); /* version & flags */
avio_wb32(pb, 1); /* entry count */
avio_wb32(pb, 0xc); /* size */
//FIXME add the alis and rsrc atom
ffio_wfourcc(pb, "url ");
avio_wb32(pb, 1); /* version & flags */
return 28;
}
static int mov_write_stbl_tag(AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
{
int64_t pos = avio_tell(pb);
int ret;
avio_wb32(pb, 0); /* size */
ffio_wfourcc(pb, "stbl");
mov_write_stsd_tag(pb, mov, track);
mov_write_stts_tag(pb, track);
if ((track->enc->codec_type == AVMEDIA_TYPE_VIDEO ||
track->enc->codec_tag == MKTAG('r','t','p',' ')) &&
track->has_keyframes && track->has_keyframes < track->entry)
mov_write_stss_tag(pb, track, MOV_SYNC_SAMPLE);
if (track->mode == MODE_MOV && track->flags & MOV_TRACK_STPS)
mov_write_stss_tag(pb, track, MOV_PARTIAL_SYNC_SAMPLE);
if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO &&
track->flags & MOV_TRACK_CTTS && track->entry) {
if ((ret = mov_write_ctts_tag(pb, track)) < 0)
return ret;
}
mov_write_stsc_tag(pb, track);
mov_write_stsz_tag(pb, track);
mov_write_stco_tag(pb, track);
if (mov->encryption_scheme == MOV_ENC_CENC_AES_CTR) {
ff_mov_cenc_write_stbl_atoms(&track->cenc, pb);
}
return update_size(pb, pos);
}
static int mov_write_dinf_tag(AVIOContext *pb)
{
int64_t pos = avio_tell(pb);
avio_wb32(pb, 0); /* size */
ffio_wfourcc(pb, "dinf");
mov_write_dref_tag(pb);
return update_size(pb, pos);
}
static int mov_write_nmhd_tag(AVIOContext *pb)
{
avio_wb32(pb, 12);
ffio_wfourcc(pb, "nmhd");
avio_wb32(pb, 0);
return 12;
}
static int mov_write_tcmi_tag(AVIOContext *pb, MOVTrack *track)
{
int64_t pos = avio_tell(pb);
const char *font = "Lucida Grande";
avio_wb32(pb, 0); /* size */
ffio_wfourcc(pb, "tcmi"); /* timecode media information atom */
avio_wb32(pb, 0); /* version & flags */
avio_wb16(pb, 0); /* text font */
avio_wb16(pb, 0); /* text face */
avio_wb16(pb, 12); /* text size */
avio_wb16(pb, 0); /* (unknown, not in the QT specs...) */
avio_wb16(pb, 0x0000); /* text color (red) */
avio_wb16(pb, 0x0000); /* text color (green) */
avio_wb16(pb, 0x0000); /* text color (blue) */
avio_wb16(pb, 0xffff); /* background color (red) */
avio_wb16(pb, 0xffff); /* background color (green) */
avio_wb16(pb, 0xffff); /* background color (blue) */
avio_w8(pb, strlen(font)); /* font len (part of the pascal string) */
avio_write(pb, font, strlen(font)); /* font name */
return update_size(pb, pos);
}
static int mov_write_gmhd_tag(AVIOContext *pb, MOVTrack *track)
{
int64_t pos = avio_tell(pb);
avio_wb32(pb, 0); /* size */
ffio_wfourcc(pb, "gmhd");
avio_wb32(pb, 0x18); /* gmin size */
ffio_wfourcc(pb, "gmin");/* generic media info */
avio_wb32(pb, 0); /* version & flags */
avio_wb16(pb, 0x40); /* graphics mode = */
avio_wb16(pb, 0x8000); /* opColor (r?) */
avio_wb16(pb, 0x8000); /* opColor (g?) */
avio_wb16(pb, 0x8000); /* opColor (b?) */
avio_wb16(pb, 0); /* balance */
avio_wb16(pb, 0); /* reserved */
/*
* This special text atom is required for
* Apple Quicktime chapters. The contents
* don't appear to be documented, so the
* bytes are copied verbatim.
*/
if (track->tag != MKTAG('c','6','0','8')) {
avio_wb32(pb, 0x2C); /* size */
ffio_wfourcc(pb, "text");
avio_wb16(pb, 0x01);
avio_wb32(pb, 0x00);
avio_wb32(pb, 0x00);
avio_wb32(pb, 0x00);
avio_wb32(pb, 0x01);
avio_wb32(pb, 0x00);
avio_wb32(pb, 0x00);
avio_wb32(pb, 0x00);
avio_wb32(pb, 0x00004000);
avio_wb16(pb, 0x0000);
}
if (track->enc->codec_tag == MKTAG('t','m','c','d')) {
int64_t tmcd_pos = avio_tell(pb);
avio_wb32(pb, 0); /* size */
ffio_wfourcc(pb, "tmcd");
mov_write_tcmi_tag(pb, track);
update_size(pb, tmcd_pos);
}
return update_size(pb, pos);
}
static int mov_write_smhd_tag(AVIOContext *pb)
{
avio_wb32(pb, 16); /* size */
ffio_wfourcc(pb, "smhd");
avio_wb32(pb, 0); /* version & flags */
avio_wb16(pb, 0); /* reserved (balance, normally = 0) */
avio_wb16(pb, 0); /* reserved */
return 16;
}
static int mov_write_vmhd_tag(AVIOContext *pb)
{
avio_wb32(pb, 0x14); /* size (always 0x14) */
ffio_wfourcc(pb, "vmhd");
avio_wb32(pb, 0x01); /* version & flags */
avio_wb64(pb, 0); /* reserved (graphics mode = copy) */
return 0x14;
}
static int is_clcp_track(MOVTrack *track)
{
return track->tag == MKTAG('c','7','0','8') ||
track->tag == MKTAG('c','6','0','8');
}
static int mov_write_hdlr_tag(AVIOContext *pb, MOVTrack *track)
{
const char *hdlr, *descr = NULL, *hdlr_type = NULL;
int64_t pos = avio_tell(pb);
hdlr = "dhlr";
hdlr_type = "url ";
descr = "DataHandler";
if (track) {
hdlr = (track->mode == MODE_MOV) ? "mhlr" : "\0\0\0\0";
if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
hdlr_type = "vide";
descr = "VideoHandler";
} else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO) {
hdlr_type = "soun";
descr = "SoundHandler";
} else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
if (is_clcp_track(track)) {
hdlr_type = "clcp";
descr = "ClosedCaptionHandler";
} else {
if (track->tag == MKTAG('t','x','3','g')) {
hdlr_type = "sbtl";
} else if (track->tag == MKTAG('m','p','4','s')) {
hdlr_type = "subp";
} else {
hdlr_type = "text";
}
descr = "SubtitleHandler";
}
} else if (track->enc->codec_tag == MKTAG('r','t','p',' ')) {
hdlr_type = "hint";
descr = "HintHandler";
} else if (track->enc->codec_tag == MKTAG('t','m','c','d')) {
hdlr_type = "tmcd";
descr = "TimeCodeHandler";
} else {
char tag_buf[32];
av_get_codec_tag_string(tag_buf, sizeof(tag_buf),
track->enc->codec_tag);
av_log(track->enc, AV_LOG_WARNING,
"Unknown hldr_type for %s / 0x%04X, writing dummy values\n",
tag_buf, track->enc->codec_tag);
}
if (track->st) {
// hdlr.name is used by some players to identify the content title
// of the track. So if an alternate handler description is
// specified, use it.
AVDictionaryEntry *t;
t = av_dict_get(track->st->metadata, "handler", NULL, 0);
if (t && utf8len(t->value))
descr = t->value;
}
}
avio_wb32(pb, 0); /* size */
ffio_wfourcc(pb, "hdlr");
avio_wb32(pb, 0); /* Version & flags */
avio_write(pb, hdlr, 4); /* handler */
ffio_wfourcc(pb, hdlr_type); /* handler type */
avio_wb32(pb, 0); /* reserved */
avio_wb32(pb, 0); /* reserved */
avio_wb32(pb, 0); /* reserved */
if (!track || track->mode == MODE_MOV)
avio_w8(pb, strlen(descr)); /* pascal string */
avio_write(pb, descr, strlen(descr)); /* handler description */
if (track && track->mode != MODE_MOV)
avio_w8(pb, 0); /* c string */
return update_size(pb, pos);
}
static int mov_write_hmhd_tag(AVIOContext *pb)
{
/* This atom must be present, but leaving the values at zero
* seems harmless. */
avio_wb32(pb, 28); /* size */
ffio_wfourcc(pb, "hmhd");
avio_wb32(pb, 0); /* version, flags */
avio_wb16(pb, 0); /* maxPDUsize */
avio_wb16(pb, 0); /* avgPDUsize */
avio_wb32(pb, 0); /* maxbitrate */
avio_wb32(pb, 0); /* avgbitrate */
avio_wb32(pb, 0); /* reserved */
return 28;
}
static int mov_write_minf_tag(AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track)
{
int64_t pos = avio_tell(pb);
int ret;
avio_wb32(pb, 0); /* size */
ffio_wfourcc(pb, "minf");
if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)
mov_write_vmhd_tag(pb);
else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
mov_write_smhd_tag(pb);
else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
if (track->tag == MKTAG('t','e','x','t') || is_clcp_track(track)) {