#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"
static int supports_edts(MOVMuxContext *mov)
{
// EDTS with fragments is tricky as we don't know the duration when its written
+ // also we might end up having to write the EDTS before the first packet, which would fail
return (mov->use_editlist<0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT)) || mov->use_editlist>0;
}
return 11;
}
+struct eac3_info {
+ uint8_t ec3_done;
+
+ /* 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 */
+};
+
+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_header2(&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_header2(&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;
+ }
+ }
+ }
+
+/* TODO: concatenate syncframes to have 6 blocks per entry */
+concatenate:
+ if (num_blocks != 6) {
+ avpriv_request_sample(track->enc, "%d block(s) in syncframe", num_blocks);
+ return AVERROR_PATCHWELCOME;
+ }
+
+ return pkt->size;
+}
+
+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) {
+ av_freep(&track->eac3_priv);
+ return AVERROR(ENOMEM);
+ }
+
+ 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);
+ 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).
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);
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 ||
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)
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');
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');
+ }
+ }
+ }
+
+ return tag;
+}
+
static const struct {
enum AVPixelFormat pix_fmt;
uint32_t tag;
(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_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
mov_write_avid_tag(pb, track);
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) {
+ 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);
}
// This box seems important for the psp playback ... without it the movie seems to hang
-static int mov_write_edts_tag(AVIOContext *pb, MOVTrack *track)
+static int mov_write_edts_tag(AVIOContext *pb, MOVMuxContext *mov,
+ MOVTrack *track)
{
int64_t duration = av_rescale_rnd(track->track_duration, MOV_TIMESCALE,
track->timescale, AV_ROUND_UP);
avio_wb32(pb, entry_count);
if (delay > 0) { /* add an empty edit to delay presentation */
+ /* In the positive delay case, the delay includes the cts
+ * offset, and the second edit list entry below trims out
+ * the same amount from the actual content. This makes sure
+ * that the offsetted last sample is included in the edit
+ * list duration as well. */
if (version == 1) {
avio_wb64(pb, delay);
avio_wb64(pb, -1);
}
avio_wb32(pb, 0x00010000);
} else {
+ /* Avoid accidentally ending up with start_ct = -1 which has got a
+ * special meaning. Normally start_ct should end up positive or zero
+ * here, but use FFMIN in case dts is a a small positive integer
+ * rounded to 0 when represented in MOV_TIMESCALE units. */
av_assert0(av_rescale_rnd(track->cluster[0].dts, MOV_TIMESCALE, track->timescale, AV_ROUND_DOWN) <= 0);
- start_ct = -FFMIN(track->cluster[0].dts, 0); //FFMIN needed due to rounding
+ start_ct = -FFMIN(track->cluster[0].dts, 0);
+ /* Note, this delay is calculated from the pts of the first sample,
+ * ensuring that we don't reduce the duration for cases with
+ * dts<0 pts=0. */
duration += delay;
}
+ /* For fragmented files, we don't know the full length yet. Setting
+ * duration to 0 allows us to only specify the offset, including
+ * the rest of the content (from all future fragments) without specifying
+ * an explicit duration. */
+ if (mov->flags & FF_MOV_FLAG_FRAGMENT)
+ duration = 0;
+
/* duration */
if (version == 1) {
avio_wb64(pb, duration);
ffio_wfourcc(pb, "trak");
mov_write_tkhd_tag(pb, mov, track, st);
if (supports_edts(mov))
- mov_write_edts_tag(pb, track); // PSP Movies and several other cases require edts box
+ mov_write_edts_tag(pb, mov, track); // PSP Movies and several other cases require edts box
if (track->tref_tag)
mov_write_tref_tag(pb, track);
mov_write_mdia_tag(pb, track);
}
info = &track->frag_info[track->nb_frag_info - 1];
info->offset = avio_tell(s->pb);
- info->time = mov->tracks[i].frag_start;
+ info->time = track->frag_start;
info->duration = duration;
mov_write_tfrf_tags(s->pb, mov, track);
samples_in_chunk = 1;
/* copy extradata if it exists */
- if (trk->vos_len == 0 && enc->extradata_size > 0) {
+ if (trk->vos_len == 0 && enc->extradata_size > 0 && !TAG_IS_AVCI(trk->tag)) {
trk->vos_len = enc->extradata_size;
trk->vos_data = av_malloc(trk->vos_len);
memcpy(trk->vos_data, enc->extradata, trk->vos_len);
}
av_log(s, AV_LOG_WARNING, "aac bitstream error\n");
}
- if (enc->codec_id == AV_CODEC_ID_H264 && trk->vos_len > 0 && *(uint8_t *)trk->vos_data != 1) {
+ if (enc->codec_id == AV_CODEC_ID_H264 && trk->vos_len > 0 && *(uint8_t *)trk->vos_data != 1 && !TAG_IS_AVCI(trk->tag)) {
/* from x264 or from bytestream h264 */
/* nal reformating needed */
if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) {
} else {
size = ff_hevc_annexb2mp4(pb, pkt->data, pkt->size, 0, NULL);
}
+ } else if (enc->codec_id == AV_CODEC_ID_EAC3) {
+ size = handle_eac3(mov, pkt, trk);
+ if (size < 0)
+ return size;
+ avio_write(pb, pkt->data, size);
} else {
avio_write(pb, pkt->data, size);
}
if (!trk->entry && trk->start_dts == AV_NOPTS_VALUE && !supports_edts(mov)) {
trk->cluster[trk->entry].dts = trk->start_dts = 0;
}
- if (trk->start_dts == AV_NOPTS_VALUE)
+ if (trk->start_dts == AV_NOPTS_VALUE) {
trk->start_dts = pkt->dts;
+ if (pkt->dts && mov->flags & FF_MOV_FLAG_EMPTY_MOOV)
+ av_log(s, AV_LOG_WARNING,
+ "Track %d starts with a nonzero dts %"PRId64". This "
+ "currently isn't handled correctly in combination with "
+ "empty_moov.\n", pkt->stream_index, pkt->dts);
+ }
trk->track_duration = pkt->dts - trk->start_dts + pkt->duration;
trk->last_sample_is_subtitle_end = 0;
if (st->codec->extradata_size) {
if (st->codec->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
mov_create_dvd_sub_decoder_specific_info(track, st);
- else {
+ else if (!TAG_IS_AVCI(track->tag)){
track->vos_len = st->codec->extradata_size;
track->vos_data = av_malloc(track->vos_len);
memcpy(track->vos_data, st->codec->extradata, track->vos_len);
projects / ffmpeg / blobdiff