mirror of https://git.ffmpeg.org/ffmpeg.git
dv: fix comment spelling
Signed-off-by: Diego Biurrun <diego@biurrun.de>
This commit is contained in:
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965dbe09b0
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65614321db
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@ -370,7 +370,6 @@ typedef struct BlockInfo {
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/* bit budget for AC only in 5 MBs */
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/* bit budget for AC only in 5 MBs */
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static const int vs_total_ac_bits = (100 * 4 + 68*2) * 5;
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static const int vs_total_ac_bits = (100 * 4 + 68*2) * 5;
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/* see dv_88_areas and dv_248_areas for details */
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static const int mb_area_start[5] = { 1, 6, 21, 43, 64 };
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static const int mb_area_start[5] = { 1, 6, 21, 43, 64 };
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static inline int put_bits_left(PutBitContext* s)
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static inline int put_bits_left(PutBitContext* s)
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@ -378,7 +377,7 @@ static inline int put_bits_left(PutBitContext* s)
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return (s->buf_end - s->buf) * 8 - put_bits_count(s);
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return (s->buf_end - s->buf) * 8 - put_bits_count(s);
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}
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}
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/* decode ac coefficients */
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/* decode AC coefficients */
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static void dv_decode_ac(GetBitContext *gb, BlockInfo *mb, DCTELEM *block)
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static void dv_decode_ac(GetBitContext *gb, BlockInfo *mb, DCTELEM *block)
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{
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{
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int last_index = gb->size_in_bits;
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int last_index = gb->size_in_bits;
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@ -391,7 +390,7 @@ static void dv_decode_ac(GetBitContext *gb, BlockInfo *mb, DCTELEM *block)
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OPEN_READER(re, gb);
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OPEN_READER(re, gb);
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UPDATE_CACHE(re, gb);
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UPDATE_CACHE(re, gb);
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/* if we must parse a partial vlc, we do it here */
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/* if we must parse a partial VLC, we do it here */
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if (partial_bit_count > 0) {
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if (partial_bit_count > 0) {
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re_cache = ((unsigned)re_cache >> partial_bit_count) |
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re_cache = ((unsigned)re_cache >> partial_bit_count) |
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(mb->partial_bit_buffer << (sizeof(re_cache) * 8 - partial_bit_count));
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(mb->partial_bit_buffer << (sizeof(re_cache) * 8 - partial_bit_count));
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@ -486,7 +485,7 @@ static int dv_decode_video_segment(AVCodecContext *avctx, void *arg)
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memset(sblock, 0, 5*DV_MAX_BPM*sizeof(*sblock));
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memset(sblock, 0, 5*DV_MAX_BPM*sizeof(*sblock));
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/* pass 1 : read DC and AC coefficients in blocks */
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/* pass 1: read DC and AC coefficients in blocks */
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buf_ptr = &s->buf[work_chunk->buf_offset*80];
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buf_ptr = &s->buf[work_chunk->buf_offset*80];
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block1 = &sblock[0][0];
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block1 = &sblock[0][0];
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mb1 = mb_data;
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mb1 = mb_data;
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@ -503,7 +502,7 @@ static int dv_decode_video_segment(AVCodecContext *avctx, void *arg)
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last_index = s->sys->block_sizes[j];
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last_index = s->sys->block_sizes[j];
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init_get_bits(&gb, buf_ptr, last_index);
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init_get_bits(&gb, buf_ptr, last_index);
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/* get the dc */
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/* get the DC */
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dc = get_sbits(&gb, 9);
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dc = get_sbits(&gb, 9);
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dct_mode = get_bits1(&gb);
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dct_mode = get_bits1(&gb);
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class1 = get_bits(&gb, 2);
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class1 = get_bits(&gb, 2);
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@ -530,7 +529,7 @@ static int dv_decode_video_segment(AVCodecContext *avctx, void *arg)
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av_dlog(avctx, "MB block: %d, %d ", mb_index, j);
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av_dlog(avctx, "MB block: %d, %d ", mb_index, j);
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dv_decode_ac(&gb, mb, block);
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dv_decode_ac(&gb, mb, block);
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/* write the remaining bits in a new buffer only if the
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/* write the remaining bits in a new buffer only if the
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block is finished */
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block is finished */
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if (mb->pos >= 64)
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if (mb->pos >= 64)
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bit_copy(&pb, &gb);
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bit_copy(&pb, &gb);
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@ -539,7 +538,7 @@ static int dv_decode_video_segment(AVCodecContext *avctx, void *arg)
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mb++;
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mb++;
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}
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}
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/* pass 2 : we can do it just after */
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/* pass 2: we can do it just after */
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av_dlog(avctx, "***pass 2 size=%d MB#=%d\n", put_bits_count(&pb), mb_index);
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av_dlog(avctx, "***pass 2 size=%d MB#=%d\n", put_bits_count(&pb), mb_index);
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block = block1;
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block = block1;
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mb = mb1;
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mb = mb1;
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@ -559,7 +558,7 @@ static int dv_decode_video_segment(AVCodecContext *avctx, void *arg)
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bit_copy(&vs_pb, &gb);
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bit_copy(&vs_pb, &gb);
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}
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}
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/* we need a pass other the whole video segment */
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/* we need a pass over the whole video segment */
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av_dlog(avctx, "***pass 3 size=%d\n", put_bits_count(&vs_pb));
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av_dlog(avctx, "***pass 3 size=%d\n", put_bits_count(&vs_pb));
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block = &sblock[0][0];
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block = &sblock[0][0];
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mb = mb_data;
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mb = mb_data;
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@ -640,7 +639,7 @@ static int dv_decode_video_segment(AVCodecContext *avctx, void *arg)
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}
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}
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#if CONFIG_SMALL
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#if CONFIG_SMALL
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/* Converts run and level (where level != 0) pair into vlc, returning bit size */
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/* Converts run and level (where level != 0) pair into VLC, returning bit size */
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static av_always_inline int dv_rl2vlc(int run, int level, int sign, uint32_t* vlc)
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static av_always_inline int dv_rl2vlc(int run, int level, int sign, uint32_t* vlc)
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{
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{
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int size;
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int size;
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@ -817,7 +816,7 @@ static av_always_inline int dv_init_enc_block(EncBlockInfo* bi, uint8_t *data, i
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if (level + 15 > 30U) {
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if (level + 15 > 30U) {
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bi->sign[i] = (level >> 31) & 1;
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bi->sign[i] = (level >> 31) & 1;
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/* weigh it and and shift down into range, adding for rounding */
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/* weight it and and shift down into range, adding for rounding */
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/* the extra division by a factor of 2^4 reverses the 8x expansion of the DCT
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/* the extra division by a factor of 2^4 reverses the 8x expansion of the DCT
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AND the 2x doubling of the weights */
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AND the 2x doubling of the weights */
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level = (FFABS(level) * weight[i] + (1 << (dv_weight_bits+3))) >> (dv_weight_bits+4);
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level = (FFABS(level) * weight[i] + (1 << (dv_weight_bits+3))) >> (dv_weight_bits+4);
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