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rtpdec_jpeg: Clarify where the subsampling magic numbers come from

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Write out the numbers the way they are constructed, not just the
final values.

Signed-off-by: Martin Storsjö <martin@martin.st>
This commit is contained in:
Martin Storsjö 2012-09-11 12:52:55 +03:00
parent c64d2a63df
commit 31adff08a1
1 changed files with 3 additions and 3 deletions
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6
libavformat/rtpdec_jpeg.c
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@ -166,13 +166,13 @@ static int jpeg_create_header(uint8_t *buf, int size, uint32_t type, uint32_t w,
bytestream2_put_be16(&pbc, w);
bytestream2_put_byte(&pbc, 3);
bytestream2_put_byte(&pbc, 1);
bytestream2_put_byte(&pbc, type ? 34 : 33);
bytestream2_put_byte(&pbc, (2 << 4) | (type ? 2 : 1)); /* hsample/vsample */
bytestream2_put_byte(&pbc, 0);
bytestream2_put_byte(&pbc, 2);
bytestream2_put_byte(&pbc, 17);
bytestream2_put_byte(&pbc, 1 << 4 | 1); /* hsample/vsample */
bytestream2_put_byte(&pbc, nb_qtable == 2 ? 1 : 0);
bytestream2_put_byte(&pbc, 3);
bytestream2_put_byte(&pbc, 17);
bytestream2_put_byte(&pbc, 1 << 4 | 1); /* hsample/vsample */
bytestream2_put_byte(&pbc, nb_qtable == 2 ? 1 : 0);
/* SOS */