generic-library/ffmpeg
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

avcodec/rawdec: Switch to monowhite if there is no palette & bpp=1

Browse Source 
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2016-01-31 04:10:02 +01:00
parent 77864be44a
commit 6ffac5d33d
5 changed files with 26 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
libavcodec/rawdec.c
View File

@ -112,6 +112,9 @@ static av_cold int raw_init_decoder(AVCodecContext *avctx)
avctx->pix_fmt == AV_PIX_FMT_YUYV422)
context->is_yuv2 = 1;
if (avctx->pix_fmt == AV_PIX_FMT_PAL8 && avctx->bits_per_coded_sample == 1)
avctx->pix_fmt = AV_PIX_FMT_NONE;
return 0;
}
@ -152,7 +155,7 @@ MKSCALE16(scale16le, AV_RL16, AV_WL16)
static int raw_decode(AVCodecContext *avctx, void *data, int *got_frame,
AVPacket *avpkt)
{
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt);
const AVPixFmtDescriptor *desc;
RawVideoContext *context = avctx->priv_data;
const uint8_t *buf = avpkt->data;
int buf_size = avpkt->size;
@ -173,6 +176,20 @@ static int raw_decode(AVCodecContext *avctx, void *data, int *got_frame,
av_log(avctx, AV_LOG_ERROR, "Packet too small (%d) height (%d)\n", avpkt->size, avctx->height);
return AVERROR_INVALIDDATA;
}
if (avctx->pix_fmt == AV_PIX_FMT_NONE &&
avctx->bits_per_coded_sample == 1 &&
avctx->frame_number == 0 &&
context->palette &&
AV_RB64(context->palette->data) == 0xFFFFFFFF00000000
) {
const uint8_t *pal = av_packet_get_side_data(avpkt, AV_PKT_DATA_PALETTE, NULL);
if (!pal) {
avctx->pix_fmt = AV_PIX_FMT_MONOWHITE;
} else
avctx->pix_fmt = AV_PIX_FMT_PAL8;
}
desc = av_pix_fmt_desc_get(avctx->pix_fmt);
if ((avctx->bits_per_coded_sample == 8 || avctx->bits_per_coded_sample == 4
|| avctx->bits_per_coded_sample == 2 || avctx->bits_per_coded_sample == 1) &&

4
tests/ref/vsynth/vsynth1-bpp1
View File

@ -1,4 +1,4 @@
3e5e0f4afb3a0350440e86b1ea56cec9 *tests/data/fate/vsynth1-bpp1.avi
640452 tests/data/fate/vsynth1-bpp1.avi
853694f3c1aa3ef3807ab1fccbeefe7b *tests/data/fate/vsynth1-bpp1.out.rawvideo
stddev: 84.44 PSNR: 9.60 MAXDIFF: 221 bytes: 7603200/ 7603200
ccef5f5d5b0392f1d01c200499dac657 *tests/data/fate/vsynth1-bpp1.out.rawvideo
stddev: 97.30 PSNR: 8.37 MAXDIFF: 237 bytes: 7603200/ 7603200

4
tests/ref/vsynth/vsynth2-bpp1
View File

@ -1,4 +1,4 @@
771437c9038b44f4e2d4ff764c1c3821 *tests/data/fate/vsynth2-bpp1.avi
640452 tests/data/fate/vsynth2-bpp1.avi
94261fc8aa20130cbd4361e15b742ef7 *tests/data/fate/vsynth2-bpp1.out.rawvideo
stddev: 70.29 PSNR: 11.19 MAXDIFF: 221 bytes: 7603200/ 7603200
ba70b5aebc786e625af6bd7f7ec82717 *tests/data/fate/vsynth2-bpp1.out.rawvideo
stddev: 81.63 PSNR: 9.89 MAXDIFF: 237 bytes: 7603200/ 7603200

4
tests/ref/vsynth/vsynth3-bpp1
View File

@ -1,4 +1,4 @@
a5e6d1eff2f6fc3bba31e3bb8753b905 *tests/data/fate/vsynth3-bpp1.avi
15352 tests/data/fate/vsynth3-bpp1.avi
79076b5fc43ee2a2284c0cde991d21f3 *tests/data/fate/vsynth3-bpp1.out.rawvideo
stddev: 84.88 PSNR: 9.55 MAXDIFF: 232 bytes: 86700/ 86700
75e8ee0c0b0ada4515455d9f29377a16 *tests/data/fate/vsynth3-bpp1.out.rawvideo
stddev: 97.70 PSNR: 8.33 MAXDIFF: 248 bytes: 86700/ 86700

4
tests/ref/vsynth/vsynth_lena-bpp1
View File

@ -1,4 +1,4 @@
d53d08c755ffde5fca744f0f941bfcb1 *tests/data/fate/vsynth_lena-bpp1.avi
640452 tests/data/fate/vsynth_lena-bpp1.avi
dce624117fcd2b16f38e0a0a62b13fa7 *tests/data/fate/vsynth_lena-bpp1.out.rawvideo
stddev: 83.18 PSNR: 9.73 MAXDIFF: 217 bytes: 7603200/ 7603200
9a66df9009670b0a593d889975246c00 *tests/data/fate/vsynth_lena-bpp1.out.rawvideo
stddev: 96.36 PSNR: 8.45 MAXDIFF: 233 bytes: 7603200/ 7603200