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Fix decoding for little endian Aja Kona 10-bit RGB.

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The little endian fourcc is r10k, big endian uses R10k.
Reported and analyzed by Jason Freets, jasonslife hotmail
This commit is contained in:
Carl Eugen Hoyos 2014-12-29 22:47:04 +01:00
parent 256df8a2fa
commit 7905bd5555
1 changed files with 8 additions and 3 deletions
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11
libavcodec/r210dec.c
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@ -27,7 +27,11 @@
static av_cold int decode_init(AVCodecContext *avctx)
{
avctx->pix_fmt = AV_PIX_FMT_RGB48;
if ((avctx->codec_tag & 0xFFFFFF) == MKTAG('r', '1', '0', 0)) {
avctx->pix_fmt = AV_PIX_FMT_BGR48;
} else {
avctx->pix_fmt = AV_PIX_FMT_RGB48;
}
avctx->bits_per_raw_sample = 10;
return 0;
@ -42,6 +46,7 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
int aligned_width = FFALIGN(avctx->width,
avctx->codec_id == AV_CODEC_ID_R10K ? 1 : 64);
uint8_t *dst_line;
int r10 = (avctx->codec_tag & 0xFFFFFF) == MKTAG('r', '1', '0', 0);
if (avpkt->size < 4 * aligned_width * avctx->height) {
av_log(avctx, AV_LOG_ERROR, "packet too small\n");
@ -60,12 +65,12 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
for (w = 0; w < avctx->width; w++) {
uint32_t pixel;
uint16_t r, g, b;
if (avctx->codec_id==AV_CODEC_ID_AVRP) {
if (avctx->codec_id == AV_CODEC_ID_AVRP || r10) {
pixel = av_le2ne32(*src++);
} else {
pixel = av_be2ne32(*src++);
}
if (avctx->codec_id==AV_CODEC_ID_R210) {
if (avctx->codec_id == AV_CODEC_ID_R210 || r10) {
b = pixel << 6;
g = (pixel >> 4) & 0xffc0;
r = (pixel >> 14) & 0xffc0;