Commit cbaa9eed authored by Martin Storsjö's avatar Martin Storsjö
Browse files

rtpdec_jpeg: Add more comments about the fields in the SOF0 section


Signed-off-by: default avatarMartin Storsjö <martin@martin.st>
parent 31adff08
...@@ -160,20 +160,20 @@ static int jpeg_create_header(uint8_t *buf, int size, uint32_t type, uint32_t w, ...@@ -160,20 +160,20 @@ static int jpeg_create_header(uint8_t *buf, int size, uint32_t type, uint32_t w,
/* SOF0 */ /* SOF0 */
jpeg_put_marker(&pbc, SOF0); jpeg_put_marker(&pbc, SOF0);
bytestream2_put_be16(&pbc, 17); bytestream2_put_be16(&pbc, 17); /* size */
bytestream2_put_byte(&pbc, 8); bytestream2_put_byte(&pbc, 8); /* bits per component */
bytestream2_put_be16(&pbc, h); bytestream2_put_be16(&pbc, h);
bytestream2_put_be16(&pbc, w); bytestream2_put_be16(&pbc, w);
bytestream2_put_byte(&pbc, 3); bytestream2_put_byte(&pbc, 3); /* number of components */
bytestream2_put_byte(&pbc, 1); bytestream2_put_byte(&pbc, 1); /* component number */
bytestream2_put_byte(&pbc, (2 << 4) | (type ? 2 : 1)); /* hsample/vsample */ bytestream2_put_byte(&pbc, (2 << 4) | (type ? 2 : 1)); /* hsample/vsample */
bytestream2_put_byte(&pbc, 0); bytestream2_put_byte(&pbc, 0); /* matrix number */
bytestream2_put_byte(&pbc, 2); bytestream2_put_byte(&pbc, 2); /* component number */
bytestream2_put_byte(&pbc, 1 << 4 | 1); /* hsample/vsample */ bytestream2_put_byte(&pbc, 1 << 4 | 1); /* hsample/vsample */
bytestream2_put_byte(&pbc, nb_qtable == 2 ? 1 : 0); bytestream2_put_byte(&pbc, nb_qtable == 2 ? 1 : 0); /* matrix number */
bytestream2_put_byte(&pbc, 3); bytestream2_put_byte(&pbc, 3); /* component number */
bytestream2_put_byte(&pbc, 1 << 4 | 1); /* hsample/vsample */ bytestream2_put_byte(&pbc, 1 << 4 | 1); /* hsample/vsample */
bytestream2_put_byte(&pbc, nb_qtable == 2 ? 1 : 0); bytestream2_put_byte(&pbc, nb_qtable == 2 ? 1 : 0); /* matrix number */
/* SOS */ /* SOS */
jpeg_put_marker(&pbc, SOS); jpeg_put_marker(&pbc, SOS);
......
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