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https://github.com/FFmpeg/FFmpeg.git
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bitstream: move put_sbits() from flacenc.c to bitstream.h and use it
throughout libavcodec. Originally committed as revision 14204 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
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f9bd305694
commit
6647ab80e3
@ -563,7 +563,7 @@ static int adpcm_encode_frame(AVCodecContext *avctx,
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//Init the encoder state
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for(i=0; i<avctx->channels; i++){
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c->status[i].step_index = av_clip(c->status[i].step_index, 0, 63); // clip step so it fits 6 bits
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put_bits(&pb, 16, samples[i] & 0xFFFF);
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put_sbits(&pb, 16, samples[i]);
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put_bits(&pb, 6, c->status[i].step_index);
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c->status[i].prev_sample = (signed short)samples[i];
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}
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@ -166,7 +166,7 @@ static inline void asv1_put_level(PutBitContext *pb, int level){
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if(index <= 6) put_bits(pb, level_tab[index][1], level_tab[index][0]);
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else{
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put_bits(pb, level_tab[3][1], level_tab[3][0]);
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put_bits(pb, 8, level&0xFF);
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put_sbits(pb, 8, level);
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}
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}
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@ -315,6 +315,13 @@ static inline void put_bits(PutBitContext *s, int n, unsigned int value)
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}
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#endif
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static inline void put_sbits(PutBitContext *pb, int bits, int32_t val)
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{
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assert(bits >= 0 && bits <= 31);
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put_bits(pb, bits, val & ((1<<bits)-1));
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}
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static inline uint8_t* pbBufPtr(PutBitContext *s)
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{
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@ -1236,13 +1236,6 @@ static void channel_decorrelation(FlacEncodeContext *ctx)
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}
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}
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static void put_sbits(PutBitContext *pb, int bits, int32_t val)
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{
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assert(bits >= 0 && bits <= 31);
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put_bits(pb, bits, val & ((1<<bits)-1));
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}
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static void write_utf8(PutBitContext *pb, uint32_t val)
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{
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uint8_t tmp;
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@ -469,7 +469,7 @@ static inline void set_ur_golomb_jpegls(PutBitContext *pb, int i, int k, int lim
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}
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put_bits(pb, e, 1);
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if(k)
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put_bits(pb, k, i&((1<<k)-1));
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put_sbits(pb, k, i);
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}else{
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while(limit > 31) {
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put_bits(pb, 31, 0);
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@ -61,7 +61,7 @@ void ff_h261_encode_picture_header(MpegEncContext * s, int picture_number){
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temp_ref= s->picture_number * (int64_t)30000 * s->avctx->time_base.num /
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(1001 * (int64_t)s->avctx->time_base.den); //FIXME maybe this should use a timestamp
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put_bits(&s->pb, 5, temp_ref & 0x1f); /* TemporalReference */
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put_sbits(&s->pb, 5, temp_ref); /* TemporalReference */
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put_bits(&s->pb, 1, 0); /* split screen off */
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put_bits(&s->pb, 1, 0); /* camera off */
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@ -309,7 +309,7 @@ static void h261_encode_block(H261Context * h, DCTELEM * block, int n){
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put_bits(&s->pb, 6, run);
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assert(slevel != 0);
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assert(level <= 127);
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put_bits(&s->pb, 8, slevel & 0xff);
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put_sbits(&s->pb, 8, slevel);
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} else {
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put_bits(&s->pb, 1, sign);
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}
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@ -249,7 +249,7 @@ void h263_encode_picture_header(MpegEncContext * s, int picture_number)
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put_bits(&s->pb, 22, 0x20); /* PSC */
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temp_ref= s->picture_number * (int64_t)coded_frame_rate * s->avctx->time_base.num / //FIXME use timestamp
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(coded_frame_rate_base * (int64_t)s->avctx->time_base.den);
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put_bits(&s->pb, 8, temp_ref & 0xff); /* TemporalReference */
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put_sbits(&s->pb, 8, temp_ref); /* TemporalReference */
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put_bits(&s->pb, 1, 1); /* marker */
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put_bits(&s->pb, 1, 0); /* h263 id */
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@ -326,7 +326,7 @@ void h263_encode_picture_header(MpegEncContext * s, int picture_number)
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put_bits(&s->pb, 1, best_clock_code);
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put_bits(&s->pb, 7, best_divisor);
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}
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put_bits(&s->pb, 2, (temp_ref>>8)&3);
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put_sbits(&s->pb, 2, temp_ref>>8);
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}
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/* Unlimited Unrestricted Motion Vectors Indicator (UUI) */
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@ -2224,11 +2224,11 @@ static void h263_encode_block(MpegEncContext * s, DCTELEM * block, int n)
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assert(slevel != 0);
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if(level < 128)
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put_bits(&s->pb, 8, slevel & 0xff);
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put_sbits(&s->pb, 8, slevel);
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else{
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put_bits(&s->pb, 8, 128);
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put_bits(&s->pb, 5, slevel & 0x1f);
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put_bits(&s->pb, 6, (slevel>>5)&0x3f);
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put_sbits(&s->pb, 5, slevel);
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put_sbits(&s->pb, 6, slevel>>5);
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}
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}else{
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if(level < 64) { // 7-bit level
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@ -2236,14 +2236,14 @@ static void h263_encode_block(MpegEncContext * s, DCTELEM * block, int n)
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put_bits(&s->pb, 1, last);
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put_bits(&s->pb, 6, run);
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put_bits(&s->pb, 7, slevel & 0x7f);
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put_sbits(&s->pb, 7, slevel);
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} else {
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/* 11-bit level */
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put_bits(&s->pb, 1, 1);
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put_bits(&s->pb, 1, last);
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put_bits(&s->pb, 6, run);
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put_bits(&s->pb, 11, slevel & 0x7ff);
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put_sbits(&s->pb, 11, slevel);
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}
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}
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} else {
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@ -2804,7 +2804,7 @@ static inline void mpeg4_encode_block(MpegEncContext * s, DCTELEM * block, int n
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put_bits(ac_pb, 1, last);
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put_bits(ac_pb, 6, run);
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put_bits(ac_pb, 1, 1);
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put_bits(ac_pb, 12, slevel & 0xfff);
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put_sbits(ac_pb, 12, slevel);
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put_bits(ac_pb, 1, 1);
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} else {
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/* second escape */
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@ -369,7 +369,7 @@ void ff_mjpeg_encode_dc(MpegEncContext *s, int val,
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put_bits(&s->pb, huff_size[nbits], huff_code[nbits]);
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put_bits(&s->pb, nbits, mant & ((1 << nbits) - 1));
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put_sbits(&s->pb, nbits, mant);
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}
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}
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@ -421,7 +421,7 @@ static void encode_block(MpegEncContext *s, DCTELEM *block, int n)
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put_bits(&s->pb, huff_size_ac[code], huff_code_ac[code]);
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put_bits(&s->pb, nbits, mant & ((1 << nbits) - 1));
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put_sbits(&s->pb, nbits, mant);
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run = 0;
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}
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}
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@ -184,7 +184,7 @@ static void put_header(MpegEncContext *s, int header)
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{
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align_put_bits(&s->pb);
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put_bits(&s->pb, 16, header>>16);
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put_bits(&s->pb, 16, header&0xFFFF);
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put_sbits(&s->pb, 16, header);
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}
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/* put sequence header if needed */
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@ -206,8 +206,8 @@ static void mpeg1_encode_sequence_header(MpegEncContext *s)
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/* mpeg1 header repeated every gop */
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put_header(s, SEQ_START_CODE);
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put_bits(&s->pb, 12, s->width & 0xFFF);
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put_bits(&s->pb, 12, s->height & 0xFFF);
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put_sbits(&s->pb, 12, s->width );
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put_sbits(&s->pb, 12, s->height);
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for(i=1; i<15; i++){
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float error= aspect_ratio;
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@ -242,9 +242,9 @@ static void mpeg1_encode_sequence_header(MpegEncContext *s)
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vbv_buffer_size = (( 20 * s->bit_rate) / (1151929 / 2)) * 8 * 1024;
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vbv_buffer_size= (vbv_buffer_size + 16383) / 16384;
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put_bits(&s->pb, 18, v & 0x3FFFF);
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put_sbits(&s->pb, 18, v);
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put_bits(&s->pb, 1, 1); /* marker */
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put_bits(&s->pb, 10, vbv_buffer_size & 0x3FF);
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put_sbits(&s->pb, 10, vbv_buffer_size);
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constraint_parameter_flag=
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s->width <= 768 && s->height <= 576 &&
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@ -557,7 +557,7 @@ static av_always_inline void mpeg1_encode_mb_internal(MpegEncContext *s,
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put_bits(&s->pb, ff_mpeg12_mbPatTable[cbp][1], ff_mpeg12_mbPatTable[cbp][0]);
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} else {
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put_bits(&s->pb, ff_mpeg12_mbPatTable[cbp>>2][1], ff_mpeg12_mbPatTable[cbp>>2][0]);
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put_bits(&s->pb, 2, cbp & 3);
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put_sbits(&s->pb, 2, cbp);
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}
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}
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s->f_count++;
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@ -640,7 +640,7 @@ static av_always_inline void mpeg1_encode_mb_internal(MpegEncContext *s,
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put_bits(&s->pb, ff_mpeg12_mbPatTable[cbp][1], ff_mpeg12_mbPatTable[cbp][0]);
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} else {
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put_bits(&s->pb, ff_mpeg12_mbPatTable[cbp>>2][1], ff_mpeg12_mbPatTable[cbp>>2][0]);
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put_bits(&s->pb, 2, cbp & 3);
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put_sbits(&s->pb, 2, cbp);
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}
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}
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}
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@ -908,16 +908,16 @@ static void mpeg1_encode_block(MpegEncContext *s,
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put_bits(&s->pb, 6, run);
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if(s->codec_id == CODEC_ID_MPEG1VIDEO){
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if (alevel < 128) {
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put_bits(&s->pb, 8, level & 0xff);
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put_sbits(&s->pb, 8, level);
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} else {
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if (level < 0) {
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put_bits(&s->pb, 16, 0x8001 + level + 255);
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} else {
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put_bits(&s->pb, 16, level & 0xffff);
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put_sbits(&s->pb, 16, level);
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}
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}
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}else{
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put_bits(&s->pb, 12, level & 0xfff);
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put_sbits(&s->pb, 12, level);
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}
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}
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last_non_zero = i;
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@ -957,7 +957,7 @@ else
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put_bits(&s->pb, s->esc3_level_length, level);
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}else{
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put_bits(&s->pb, 6, run);
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put_bits(&s->pb, 8, slevel & 0xff);
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put_sbits(&s->pb, 8, slevel);
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}
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} else {
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/* second escape */
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@ -265,7 +265,7 @@ void rv20_encode_picture_header(MpegEncContext *s, int picture_number){
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put_bits(&s->pb, 1, 0); /* unknown bit */
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put_bits(&s->pb, 5, s->qscale);
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put_bits(&s->pb, 8, picture_number&0xFF); //FIXME wrong, but correct is not known
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put_sbits(&s->pb, 8, picture_number); //FIXME wrong, but correct is not known
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s->mb_x= s->mb_y= 0;
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ff_h263_encode_mba(s);
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