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| author | Michael Niedermayer <michaelni@gmx.at> | 2012-04-22 21:37:54 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2012-04-22 22:26:55 +0200 |
| commit | 70d54392f5015b9c6594fcae558f59f952501e3b (patch) | |
| tree | bf8188c68474cebf9982c80cfe6244b3d4347f23 /libavcodec/dvdec.c | |
| parent | 92ef4be4ab9fbb7d901b22e0036a4ca90b00a476 (diff) | |
| download | ffmpeg-70d54392f5015b9c6594fcae558f59f952501e3b.tar.gz | |
lowres2 support.
The new lowres support is limited to decoders where lowres decoding
is possible in high quality.
I was not able to measure any speed difference, but if one is found
the 2-3 lines that might affect speed can be made compile time conditional
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavcodec/dvdec.c')
| -rw-r--r-- | libavcodec/dvdec.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/libavcodec/dvdec.c b/libavcodec/dvdec.c index f0fa5e9023..4e09d0dd9a 100644 --- a/libavcodec/dvdec.c +++ b/libavcodec/dvdec.c @@ -144,7 +144,7 @@ static int dv_decode_video_segment(AVCodecContext *avctx, void *arg) LOCAL_ALIGNED_16(DCTELEM, sblock, [5*DV_MAX_BPM], [64]); LOCAL_ALIGNED_16(uint8_t, mb_bit_buffer, [ 80 + FF_INPUT_BUFFER_PADDING_SIZE]); /* allow some slack */ LOCAL_ALIGNED_16(uint8_t, vs_bit_buffer, [5*80 + FF_INPUT_BUFFER_PADDING_SIZE]); /* allow some slack */ - const int log2_blocksize = 3; + const int log2_blocksize = 3-s->avctx->lowres; int is_field_mode[5]; assert((((int)mb_bit_buffer) & 7) == 0); @@ -382,5 +382,6 @@ AVCodec ff_dvvideo_decoder = { .close = dvvideo_close, .decode = dvvideo_decode_frame, .capabilities = CODEC_CAP_DR1 | CODEC_CAP_SLICE_THREADS, + .max_lowres = 3, .long_name = NULL_IF_CONFIG_SMALL("DV (Digital Video)"), }; |