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Code Issues Releases Activity

Fix buffer_size argument to init_put_bits() in multiple encoders.

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Several encoders were multiplying the buffer size by 8, in order to get
a bit size. However, the buffer_size argument is for the byte size of
the buffer. We had experienced crashes encoding prores (Anatoliy) at
size 4096x4096.
This commit is contained in:
Dyami Caliri 2015-02-26 10:17:01 -08:00 committed by Michael Niedermayer
parent b851bc20c6
commit 50833c9f7b
9 changed files with 10 additions and 10 deletions
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2
libavcodec/aacenc.c
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@ -165,7 +165,7 @@ static void put_audio_specific_config(AVCodecContext *avctx)
PutBitContext pb;
AACEncContext *s = avctx->priv_data;
init_put_bits(&pb, avctx->extradata, avctx->extradata_size*8);
init_put_bits(&pb, avctx->extradata, avctx->extradata_size);
put_bits(&pb, 5, 2); //object type - AAC-LC
put_bits(&pb, 4, s->samplerate_index); //sample rate index
put_bits(&pb, 4, s->channels);

4
libavcodec/adpcmenc.c
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@ -541,7 +541,7 @@ static int adpcm_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
case AV_CODEC_ID_ADPCM_IMA_QT:
{
PutBitContext pb;
init_put_bits(&pb, dst, pkt_size * 8);
init_put_bits(&pb, dst, pkt_size);
for (ch = 0; ch < avctx->channels; ch++) {
ADPCMChannelStatus *status = &c->status[ch];
@ -571,7 +571,7 @@ static int adpcm_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
case AV_CODEC_ID_ADPCM_SWF:
{
PutBitContext pb;
init_put_bits(&pb, dst, pkt_size * 8);
init_put_bits(&pb, dst, pkt_size);
n = frame->nb_samples - 1;

2
libavcodec/faxcompr.c
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@ -251,7 +251,7 @@ static void put_line(uint8_t *dst, int size, int width, const int *runs)
PutBitContext pb;
int run, mode = ~0, pix_left = width, run_idx = 0;
init_put_bits(&pb, dst, size * 8);
init_put_bits(&pb, dst, size);
while (pix_left > 0) {
run = runs[run_idx++];
mode = ~mode;

2
libavcodec/flashsv2enc.c
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@ -287,7 +287,7 @@ static int write_header(FlashSV2Context * s, uint8_t * buf, int buf_size)
if (buf_size < 5)
return -1;
init_put_bits(&pb, buf, buf_size * 8);
init_put_bits(&pb, buf, buf_size);
put_bits(&pb, 4, (s->block_width >> 4) - 1);
put_bits(&pb, 12, s->image_width);

2
libavcodec/flashsvenc.c
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@ -151,7 +151,7 @@ static int encode_bitstream(FlashSVContext *s, const AVFrame *p, uint8_t *buf,
int buf_pos, res;
int pred_blocks = 0;
init_put_bits(&pb, buf, buf_size * 8);
init_put_bits(&pb, buf, buf_size);
put_bits(&pb, 4, block_width / 16 - 1);
put_bits(&pb, 12, s->image_width);

2
libavcodec/nellymoserenc.c
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@ -308,7 +308,7 @@ static void encode_block(NellyMoserEncodeContext *s, unsigned char *output, int
apply_mdct(s);
init_put_bits(&pb, output, output_size * 8);
init_put_bits(&pb, output, output_size);
i = 0;
for (band = 0; band < NELLY_BANDS; band++) {

2
libavcodec/proresenc_anatoliy.c
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@ -304,7 +304,7 @@ static int encode_slice_plane(AVCodecContext *avctx, int mb_count,
}
blocks_per_slice = mb_count << (2 - chroma);
init_put_bits(&pb, buf, buf_size << 3);
init_put_bits(&pb, buf, buf_size);
encode_dc_coeffs(&pb, blocks, blocks_per_slice, qmat);
encode_ac_coeffs(avctx, &pb, blocks, blocks_per_slice, qmat);

2
libavcodec/proresenc_kostya.c
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@ -1057,7 +1057,7 @@ static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
slice_hdr = pkt->data + (slice_hdr - start);
tmp = pkt->data + (tmp - start);
}
init_put_bits(&pb, buf, (pkt_size - (buf - orig_buf)) * 8);
init_put_bits(&pb, buf, (pkt_size - (buf - orig_buf)));
ret = encode_slice(avctx, pic, &pb, sizes, x, y, q,
mbs_per_slice);
if (ret < 0)

2
libavcodec/s302menc.c
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@ -82,7 +82,7 @@ static int s302m_encode2_frame(AVCodecContext *avctx, AVPacket *avpkt,
return ret;
o = avpkt->data;
init_put_bits(&pb, o, buf_size * 8);
init_put_bits(&pb, o, buf_size);
put_bits(&pb, 16, buf_size - AES3_HEADER_LEN);
put_bits(&pb, 2, (avctx->channels - 2) >> 1); // number of channels
put_bits(&pb, 8, 0); // channel ID