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author | Michael Niedermayer <michaelni@gmx.at> | 2012-03-16 07:47:27 +0100 |
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committer | Michael Niedermayer <michaelni@gmx.at> | 2012-03-16 09:01:08 +0100 |
commit | 568e9062bd29e13e0bfa42f2ac8411d01608634d (patch) | |
tree | a78351d75b3dee8257909ccffde46880099c91bb /libavcodec/svq3.c | |
parent | 5dbc75870f486fb9c0237870eafa834a8a2066c8 (diff) | |
parent | 5effcfa76792470677a1f6bc9aa73347a87ef720 (diff) | |
download | ffmpeg-568e9062bd29e13e0bfa42f2ac8411d01608634d.tar.gz |
Merge remote-tracking branch 'qatar/release/0.8' into release/0.10
* qatar/release/0.8: (154 commits)
Update Changelog for the 0.8.1 Release
dca: include libavutil/mathematics.h for possibly missing M_SQRT1_2
dca: don't use av_clip_uintp2().
snow: check reference frame indices.
snow: reject unsupported chroma shifts.
xa_adpcm: limit filter to prevent xa_adpcm_table[] array bounds overruns.
h264: increase reference poc list from 16 to 32.
h264: stricter reference limit enforcement.
h264: improve parsing of broken AVC SPS
Replace computations of remaining bits with calls to get_bits_left().
png: convert to bytestream2 API.
roqvideo: convert to bytestream2 API.
smc: port to bytestream2 API.
tgq: convert to bytestream2 API.
algmm: convert to bytestream2 API.
jvdec: unbreak video decoding
h264: Fix invalid interlaced/progressive MB combinations for direct mode prediction.
libx264: add 'stats' private option for setting 2pass stats filename.
libx264: fix help text for slice-max-size option.
avconv: reindent
...
Conflicts:
Changelog
RELEASE
avconv.c
doc/APIchanges
ffplay.c
libavcodec/Makefile
libavcodec/aacdec.c
libavcodec/alsdec.c
libavcodec/atrac3.c
libavcodec/avcodec.h
libavcodec/dvdata.c
libavcodec/fraps.c
libavcodec/golomb.h
libavcodec/h264.c
libavcodec/h264.h
libavcodec/h264_cabac.c
libavcodec/h264_cavlc.c
libavcodec/h264_direct.c
libavcodec/h264_parser.c
libavcodec/h264_ps.c
libavcodec/h264idct_template.c
libavcodec/indeo3.c
libavcodec/kgv1dec.c
libavcodec/kmvc.c
libavcodec/mjpegbdec.c
libavcodec/mmvideo.c
libavcodec/mpegaudiodec.c
libavcodec/mpegvideo.h
libavcodec/options.c
libavcodec/pngdec.c
libavcodec/roqvideodec.c
libavcodec/shorten.c
libavcodec/svq3.c
libavcodec/utils.c
libavcodec/version.h
libavcodec/wmadec.c
libavcodec/xxan.c
libavformat/Makefile
libavformat/asfdec.c
libavformat/dv.c
libavformat/mov.c
libavformat/nsvdec.c
libavformat/utils.c
libavformat/version.h
libavutil/avutil.h
libavutil/error.c
libavutil/error.h
libswscale/swscale.c
libswscale/utils.c
libswscale/x86/swscale_template.c
tests/ref/acodec/g722
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavcodec/svq3.c')
-rw-r--r-- | libavcodec/svq3.c | 34 |
1 files changed, 21 insertions, 13 deletions
diff --git a/libavcodec/svq3.c b/libavcodec/svq3.c index d96ce8ee8d..7ccc7417e0 100644 --- a/libavcodec/svq3.c +++ b/libavcodec/svq3.c @@ -175,7 +175,6 @@ void ff_svq3_add_idct_c(uint8_t *dst, DCTELEM *block, int stride, int qp, { const int qmul = svq3_dequant_coeff[qp]; int i; - uint8_t *cm = ff_cropTbl + MAX_NEG_CROP; if (dc) { dc = 13*13*((dc == 1) ? 1538*block[0] : ((qmul*(block[0] >> 3)) / 2)); @@ -201,10 +200,10 @@ void ff_svq3_add_idct_c(uint8_t *dst, DCTELEM *block, int stride, int qp, const int z3 = 17* block[i + 4*1] + 7*block[i + 4*3]; const int rr = (dc + 0x80000); - dst[i + stride*0] = cm[ dst[i + stride*0] + (((z0 + z3)*qmul + rr) >> 20) ]; - dst[i + stride*1] = cm[ dst[i + stride*1] + (((z1 + z2)*qmul + rr) >> 20) ]; - dst[i + stride*2] = cm[ dst[i + stride*2] + (((z1 - z2)*qmul + rr) >> 20) ]; - dst[i + stride*3] = cm[ dst[i + stride*3] + (((z0 - z3)*qmul + rr) >> 20) ]; + dst[i + stride*0] = av_clip_uint8( dst[i + stride*0] + (((z0 + z3)*qmul + rr) >> 20) ); + dst[i + stride*1] = av_clip_uint8( dst[i + stride*1] + (((z1 + z2)*qmul + rr) >> 20) ); + dst[i + stride*2] = av_clip_uint8( dst[i + stride*2] + (((z1 - z2)*qmul + rr) >> 20) ); + dst[i + stride*3] = av_clip_uint8( dst[i + stride*3] + (((z0 - z3)*qmul + rr) >> 20) ); } } @@ -614,7 +613,7 @@ static int svq3_decode_mb(SVQ3Context *svq3, unsigned int mb_type) dir = i_mb_type_info[mb_type - 8].pred_mode; dir = (dir >> 1) ^ 3*(dir & 1) ^ 1; - if ((h->intra16x16_pred_mode = ff_h264_check_intra16x16_pred_mode(h, dir)) == -1){ + if ((h->intra16x16_pred_mode = ff_h264_check_intra_pred_mode(h, dir, 0)) == -1){ av_log(h->s.avctx, AV_LOG_ERROR, "check_intra_pred_mode = -1\n"); return -1; } @@ -653,7 +652,7 @@ static int svq3_decode_mb(SVQ3Context *svq3, unsigned int mb_type) if (IS_INTRA16x16(mb_type) || (s->pict_type != AV_PICTURE_TYPE_I && s->adaptive_quant && cbp)) { s->qscale += svq3_get_se_golomb(&s->gb); - if (s->qscale > 31U){ + if (s->qscale > 31u){ av_log(h->s.avctx, AV_LOG_ERROR, "qscale:%d\n", s->qscale); return -1; } @@ -713,7 +712,7 @@ static int svq3_decode_mb(SVQ3Context *svq3, unsigned int mb_type) s->current_picture.f.mb_type[mb_xy] = mb_type; if (IS_INTRA(mb_type)) { - h->chroma_pred_mode = ff_h264_check_intra_chroma_pred_mode(h, DC_PRED8x8); + h->chroma_pred_mode = ff_h264_check_intra_pred_mode(h, DC_PRED8x8, 1); } return 0; @@ -813,7 +812,9 @@ static av_cold int svq3_decode_init(AVCodecContext *avctx) MpegEncContext *s = &h->s; int m; unsigned char *extradata; + unsigned char *extradata_end; unsigned int size; + int marker_found = 0; if (ff_h264_decode_init(avctx) < 0) return -1; @@ -834,19 +835,26 @@ static av_cold int svq3_decode_init(AVCodecContext *avctx) /* prowl for the "SEQH" marker in the extradata */ extradata = (unsigned char *)avctx->extradata; - for (m = 0; m < avctx->extradata_size; m++) { - if (!memcmp(extradata, "SEQH", 4)) - break; - extradata++; + extradata_end = avctx->extradata + avctx->extradata_size; + if (extradata) { + for (m = 0; m + 8 < avctx->extradata_size; m++) { + if (!memcmp(extradata, "SEQH", 4)) { + marker_found = 1; + break; + } + extradata++; + } } /* if a match was found, parse the extra data */ - if (extradata && !memcmp(extradata, "SEQH", 4)) { + if (marker_found) { GetBitContext gb; int frame_size_code; size = AV_RB32(&extradata[4]); + if (size > extradata_end - extradata - 8) + return AVERROR_INVALIDDATA; init_get_bits(&gb, extradata + 8, size*8); /* 'frame size code' and optional 'width, height' */ |