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Code Issues Releases Activity

lavf/movenc: Add support for palette side data

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Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Mats Peterson 2016-03-03 00:27:53 +01:00 committed by Michael Niedermayer
parent ba40b3520d
commit 5111c1bef3
1 changed files with 25 additions and 19 deletions
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44
libavformat/movenc.c
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@ -1716,14 +1716,15 @@ static int mov_write_video_tag(AVIOContext *pb, MOVMuxContext *mov, MOVTrack *tr
else
avio_wb16(pb, 0x18); /* Reserved */
if (track->is_unaligned_qt_rgb && track->enc->pix_fmt == AV_PIX_FMT_PAL8) {
if (track->mode == MODE_MOV && track->enc->pix_fmt == AV_PIX_FMT_PAL8) {
int pal_size = 1 << track->enc->bits_per_coded_sample;
int i;
avio_wb16(pb, 0); /* Color table ID */
avio_wb32(pb, 0); /* Color table seed */
avio_wb16(pb, 0x8000); /* Color table flags */
avio_wb16(pb, 255); /* Color table size (zero-relative) */
for (i = 0; i < 256; i++) {
uint32_t rgb = AV_RL32(&track->palette[i]);
avio_wb16(pb, pal_size - 1); /* Color table size (zero-relative) */
for (i = 0; i < pal_size; i++) {
uint32_t rgb = track->palette[i];
uint16_t r = (rgb >> 16) & 0xff;
uint16_t g = (rgb >> 8) & 0xff;
uint16_t b = rgb & 0xff;
@ -4763,21 +4764,26 @@ static int mov_write_packet(AVFormatContext *s, AVPacket *pkt)
}
}
if (trk->is_unaligned_qt_rgb) {
const uint8_t *data = pkt->data;
int size = pkt->size;
int64_t bpc = trk->enc->bits_per_coded_sample != 15 ? trk->enc->bits_per_coded_sample : 16;
int expected_stride = ((trk->enc->width * bpc + 15) >> 4)*2;
int ret = ff_reshuffle_raw_rgb(s, &pkt, trk->enc, expected_stride);
if (ret < 0)
return ret;
if (ret == CONTAINS_PAL && !trk->pal_done) {
int pal_size = 1 << trk->enc->bits_per_coded_sample;
memset(trk->palette, 0, AVPALETTE_SIZE);
memcpy(trk->palette, data + size - 4*pal_size, 4*pal_size);
trk->pal_done++;
} else if (trk->enc->pix_fmt == AV_PIX_FMT_GRAY8 ||
trk->enc->pix_fmt == AV_PIX_FMT_MONOBLACK) {
if (trk->mode == MODE_MOV && trk->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
AVPacket *opkt = pkt;
int ret;
if (trk->is_unaligned_qt_rgb) {
int64_t bpc = trk->enc->bits_per_coded_sample != 15 ? trk->enc->bits_per_coded_sample : 16;
int expected_stride = ((trk->enc->width * bpc + 15) >> 4)*2;
ret = ff_reshuffle_raw_rgb(s, &pkt, trk->enc, expected_stride);
if (ret < 0)
return ret;
} else
ret = 0;
if (trk->enc->pix_fmt == AV_PIX_FMT_PAL8 && !trk->pal_done) {
int ret2 = ff_get_packet_palette(s, opkt, ret, trk->palette);
if (ret2 < 0)
return ret2;
if (ret2)
trk->pal_done++;
} else if (trk->enc->codec_id == AV_CODEC_ID_RAWVIDEO &&
(trk->enc->pix_fmt == AV_PIX_FMT_GRAY8 ||
trk->enc->pix_fmt == AV_PIX_FMT_MONOBLACK)) {
for (i = 0; i < pkt->size; i++)
pkt->data[i] = ~pkt->data[i];
}