Revision 98e34e71 libavcodec/ac3enc.c
| libavcodec/ac3enc.c | ||
|---|---|---|
| 1055 | 1055 |
{
|
| 1056 | 1056 |
int ch; |
| 1057 | 1057 |
int bits_left; |
| 1058 |
int snr_offset; |
|
| 1058 |
int snr_offset, snr_incr;
|
|
| 1059 | 1059 |
|
| 1060 | 1060 |
bits_left = 8 * s->frame_size - (s->frame_bits + s->exponent_bits); |
| 1061 | 1061 |
|
| ... | ... | |
| 1069 | 1069 |
return AVERROR(EINVAL); |
| 1070 | 1070 |
|
| 1071 | 1071 |
FFSWAP(uint8_t *, s->bap_buffer, s->bap1_buffer); |
| 1072 |
for (snr_incr = 64; snr_incr > 0; snr_incr >>= 2) {
|
|
| 1072 | 1073 |
while (snr_offset + 64 <= 1023 && |
| 1073 |
bit_alloc(s, snr_offset + 64) <= bits_left) {
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|
| 1074 |
snr_offset += 64;
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|
| 1074 |
bit_alloc(s, snr_offset + snr_incr) <= bits_left) {
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| 1075 |
snr_offset += snr_incr;
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|
| 1075 | 1076 |
FFSWAP(uint8_t *, s->bap_buffer, s->bap1_buffer); |
| 1076 | 1077 |
} |
| 1077 |
while (snr_offset + 16 <= 1023 && |
|
| 1078 |
bit_alloc(s, snr_offset + 16) <= bits_left) {
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| 1079 |
snr_offset += 16; |
|
| 1080 |
FFSWAP(uint8_t *, s->bap_buffer, s->bap1_buffer); |
|
| 1081 |
} |
|
| 1082 |
while (snr_offset + 4 <= 1023 && |
|
| 1083 |
bit_alloc(s, snr_offset + 4) <= bits_left) {
|
|
| 1084 |
snr_offset += 4; |
|
| 1085 |
FFSWAP(uint8_t *, s->bap_buffer, s->bap1_buffer); |
|
| 1086 |
} |
|
| 1087 |
while (snr_offset + 1 <= 1023 && |
|
| 1088 |
bit_alloc(s, snr_offset + 1) <= bits_left) {
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|
| 1089 |
snr_offset++; |
|
| 1090 |
FFSWAP(uint8_t *, s->bap_buffer, s->bap1_buffer); |
|
| 1091 | 1078 |
} |
| 1092 | 1079 |
FFSWAP(uint8_t *, s->bap_buffer, s->bap1_buffer); |
| 1093 | 1080 |
reset_block_bap(s); |
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