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Code Issues Releases Activity

lavf/avienc: Add palette after BITMAPINFOHEADER

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lavf/riffenc: Write space for palette
tests/ref/vsynth: Update 1 bpp files for pal8

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Mats Peterson 2016-02-20 12:57:50 +01:00 committed by Michael Niedermayer
parent f8d685270e
commit a51d82b85c
6 changed files with 55 additions and 24 deletions
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23
libavformat/avienc.c
View File

@ -74,6 +74,9 @@ typedef struct AVIStream {
int max_size;
int sample_requested;
int64_t pal_offset;
int hdr_pal_done;
int64_t last_dts;
AVIIndex indexes;
@ -359,6 +362,7 @@ static int avi_write_header(AVFormatContext *s)
&& enc->pix_fmt == AV_PIX_FMT_RGB555LE
&& enc->bits_per_coded_sample == 15)
enc->bits_per_coded_sample = 16;
avist->pal_offset = avio_tell(pb) + 40;
ff_put_bmp_header(pb, enc, ff_codec_bmp_tags, 0, 0);
pix_fmt = avpriv_find_pix_fmt(avpriv_pix_fmt_bps_avi,
enc->bits_per_coded_sample);
@ -652,6 +656,7 @@ static int avi_write_packet(AVFormatContext *s, AVPacket *pkt)
int size = pkt->size;
AVIOContext *pb = s->pb;
AVCodecContext *enc = s->streams[stream_index]->codec;
AVIStream *avist = s->streams[stream_index]->priv_data;
int ret;
if (enc->codec_id == AV_CODEC_ID_H264 && enc->codec_tag == MKTAG('H','2','6','4') && pkt->size) {
@ -673,15 +678,25 @@ static int avi_write_packet(AVFormatContext *s, AVPacket *pkt)
if (ret) {
if (ret == CONTAINS_PAL) {
int pc_tag, i;
int pal_size = 1 << enc->bits_per_coded_sample;
if (!avist->hdr_pal_done) {
int64_t cur_offset = avio_tell(pb);
avio_seek(pb, avist->pal_offset, SEEK_SET);
for (i = 0; i < pal_size; i++) {
uint32_t v = AV_RL32(data + size - 4*pal_size + 4*i);
avio_wl32(pb, v & 0xffffff);
}
avio_seek(pb, cur_offset, SEEK_SET);
avist->hdr_pal_done++;
}
avi_stream2fourcc(tag, stream_index, enc->codec_type);
tag[2] = 'p'; tag[3] = 'c';
pc_tag = ff_start_tag(pb, tag);
avio_w8(pb, 0);
avio_w8(pb, 0);
avio_w8(pb, pal_size);
avio_wl16(pb, 0); // reserved
for (i = 0; i<256; i++) {
uint32_t v = AV_RL32(data + size - 1024 + 4*i);
for (i = 0; i < pal_size; i++) {
uint32_t v = AV_RL32(data + size - 4*pal_size + 4*i);
avio_wb32(pb, v<<8);
}
ff_end_tag(pb, pc_tag);

24
libavformat/riffenc.c
View File

@ -209,6 +209,12 @@ void ff_put_bmp_header(AVIOContext *pb, AVCodecContext *enc,
int keep_height = enc->extradata_size >= 9 &&
!memcmp(enc->extradata + enc->extradata_size - 9, "BottomUp", 9);
int extradata_size = enc->extradata_size - 9*keep_height;
int raw_pal_avi;
raw_pal_avi = !for_asf && enc->codec_id == AV_CODEC_ID_RAWVIDEO &&
enc->bits_per_coded_sample >= 1 && enc->bits_per_coded_sample <= 8;
if (!enc->extradata_size && raw_pal_avi)
extradata_size = 4 * (1 << enc->bits_per_coded_sample);
/* size */
avio_wl32(pb, 40 + (ignore_extradata ? 0 :extradata_size));
@ -228,10 +234,20 @@ void ff_put_bmp_header(AVIOContext *pb, AVCodecContext *enc,
avio_wl32(pb, 0);
if (!ignore_extradata) {
avio_write(pb, enc->extradata, extradata_size);
if (!for_asf && extradata_size & 1)
avio_w8(pb, 0);
if (enc->extradata_size) {
avio_write(pb, enc->extradata, extradata_size);
if (!for_asf && extradata_size & 1)
avio_w8(pb, 0);
} else if (raw_pal_avi) {
int i;
for (i = 0; i < 1 << enc->bits_per_coded_sample; i++) {
/* Initialize 1 bpp palette to black & white */
if (!i && enc->bits_per_coded_sample == 1)
avio_wl32(pb, 0xffffff);
else
avio_wl32(pb, 0);
}
}
}
}

8
tests/ref/vsynth/vsynth1-bpp1
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@ -1,4 +1,4 @@
611de0803ff6bd0ef385dde59964a105 *tests/data/fate/vsynth1-bpp1.avi
640452 tests/data/fate/vsynth1-bpp1.avi
576b690e8a8921c54d777463b63a8307 *tests/data/fate/vsynth1-bpp1.out.rawvideo
stddev: 97.41 PSNR: 8.36 MAXDIFF: 238 bytes: 7603200/ 7603200
0fcba876d3e499c0bebf7bb32a7f83f2 *tests/data/fate/vsynth1-bpp1.avi
640460 tests/data/fate/vsynth1-bpp1.avi
cd1e1448d9895561347ceb66d0add34d *tests/data/fate/vsynth1-bpp1.out.rawvideo
stddev: 84.48 PSNR: 9.60 MAXDIFF: 218 bytes: 7603200/ 7603200

8
tests/ref/vsynth/vsynth2-bpp1
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@ -1,4 +1,4 @@
b51ad49892eb8f8912c5a983718a17bb *tests/data/fate/vsynth2-bpp1.avi
640452 tests/data/fate/vsynth2-bpp1.avi
338fb9039a4564e471bf8179f0c48a95 *tests/data/fate/vsynth2-bpp1.out.rawvideo
stddev: 80.40 PSNR: 10.02 MAXDIFF: 238 bytes: 7603200/ 7603200
af7eae5293b820493d1f4e6d258d8da0 *tests/data/fate/vsynth2-bpp1.avi
640460 tests/data/fate/vsynth2-bpp1.avi
f0dfc0e87e5d96bce29a5944b1bd7471 *tests/data/fate/vsynth2-bpp1.out.rawvideo
stddev: 68.98 PSNR: 11.36 MAXDIFF: 218 bytes: 7603200/ 7603200

8
tests/ref/vsynth/vsynth3-bpp1
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@ -1,4 +1,4 @@
d5689d1f5c2d4c28a345d5964a6161a8 *tests/data/fate/vsynth3-bpp1.avi
20452 tests/data/fate/vsynth3-bpp1.avi
0b1ea21b69d384564dd3a978065443b2 *tests/data/fate/vsynth3-bpp1.out.rawvideo
stddev: 97.64 PSNR: 8.34 MAXDIFF: 248 bytes: 86700/ 86700
01b0fbf35305b50b1c148c0a23f2cff4 *tests/data/fate/vsynth3-bpp1.avi
20460 tests/data/fate/vsynth3-bpp1.avi
52ae74ef7910e5b603c12288d425b9ae *tests/data/fate/vsynth3-bpp1.out.rawvideo
stddev: 84.76 PSNR: 9.57 MAXDIFF: 232 bytes: 86700/ 86700

8
tests/ref/vsynth/vsynth_lena-bpp1
View File

@ -1,4 +1,4 @@
2859022fac452b59e49a1189c4fbb3ec *tests/data/fate/vsynth_lena-bpp1.avi
640452 tests/data/fate/vsynth_lena-bpp1.avi
3be3497f8ca548c9196dcecc5bc7cb2b *tests/data/fate/vsynth_lena-bpp1.out.rawvideo
stddev: 96.52 PSNR: 8.44 MAXDIFF: 231 bytes: 7603200/ 7603200
930d019cbf8e06c67bdec58a3639c045 *tests/data/fate/vsynth_lena-bpp1.avi
640460 tests/data/fate/vsynth_lena-bpp1.avi
6183ba861d4e48d4aaefc514fde270e5 *tests/data/fate/vsynth_lena-bpp1.out.rawvideo
stddev: 83.28 PSNR: 9.72 MAXDIFF: 215 bytes: 7603200/ 7603200