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pngenc: write sample aspect ratio

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Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol 2012-10-13 09:26:09 +00:00
parent 8288c2b6cb
commit f58f90238f
2 changed files with 11 additions and 6 deletions
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5
libavcodec/pngenc.c
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@ -335,6 +335,11 @@ static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
png_write_chunk(&s->bytestream, MKTAG('I', 'H', 'D', 'R'), s->buf, 13);
AV_WB32(s->buf, avctx->sample_aspect_ratio.num);
AV_WB32(s->buf + 4, avctx->sample_aspect_ratio.den);
s->buf[8] = 0; /* unit specifier is unknown */
png_write_chunk(&s->bytestream, MKTAG('p', 'H', 'Y', 's'), s->buf, 9);
/* put the palette if needed */
if (color_type == PNG_COLOR_TYPE_PALETTE) {
int has_alpha, alpha, i;

12
tests/ref/lavf/png
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@ -1,9 +1,9 @@
c162094e51dc1a3203de43e496086dfd *./tests/data/images/png/02.png
2af72da4468e61a37c220b25cb28618a *./tests/data/images/png/02.png
./tests/data/images/png/%02d.png CRC=0x6da01946
248612 ./tests/data/images/png/02.png
63805114b3723490833789277246276f *./tests/data/images/png/02.png
248633 ./tests/data/images/png/02.png
62b26c9582ba37dd37b76191338f3770 *./tests/data/images/png/02.png
./tests/data/images/png/%02d.png CRC=0x831a2963
41666 ./tests/data/images/png/02.png
b4c1f0b706a296ba6e791d436757dc5f *./tests/data/images/png/02.png
41687 ./tests/data/images/png/02.png
b4e38244c97debe3f528e7d1adb283ef *./tests/data/images/png/02.png
./tests/data/images/png/%02d.png CRC=0x5984c023
511879 ./tests/data/images/png/02.png
511900 ./tests/data/images/png/02.png