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Merge commit 'd0393d79bc3d61c9f2ff832c0e273b7774ff0269'

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* commit 'd0393d79bc3d61c9f2ff832c0e273b7774ff0269':
  huffyuv: Check and propagate function return values

Conflicts:
	libavcodec/huffyuvdec.c

See: f67a0d1152
Merged-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2014-08-04 05:08:01 +02:00
commit 2793b218bd
1 changed files with 34 additions and 32 deletions
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66
libavcodec/huffyuvdec.c
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@ -189,7 +189,8 @@ static int generate_joint_tables(HYuvContext *s)
}
}
ff_free_vlc(&s->vlc[4]);
if ((ret = init_vlc(&s->vlc[4], VLC_BITS, i, len, 1, 1, bits, 2, 2, 0)) < 0)
if ((ret = init_vlc(&s->vlc[4], VLC_BITS, i, len, 1, 1,
bits, 2, 2, 0)) < 0)
return ret;
}
return 0;
@ -198,20 +199,20 @@ static int generate_joint_tables(HYuvContext *s)
static int read_huffman_tables(HYuvContext *s, const uint8_t *src, int length)
{
GetBitContext gb;
int i;
int ret;
int i, ret;
int count = 3;
init_get_bits(&gb, src, length * 8);
if ((ret = init_get_bits(&gb, src, length * 8)) < 0)
return ret;
if (s->version > 2)
count = 1 + s->alpha + 2*s->chroma;
for (i = 0; i < count; i++) {
if (read_len_table(s->len[i], &gb, s->vlc_n) < 0)
return -1;
if (ff_huffyuv_generate_bits_table(s->bits[i], s->len[i], s->vlc_n) < 0)
return -1;
if ((ret = read_len_table(s->len[i], &gb, s->vlc_n)) < 0)
return ret;
if ((ret = ff_huffyuv_generate_bits_table(s->bits[i], s->len[i], s->vlc_n)) < 0)
return ret;
ff_free_vlc(&s->vlc[i]);
if ((ret = init_vlc(&s->vlc[i], VLC_BITS, s->vlc_n, s->len[i], 1, 1,
s->bits[i], 4, 4, 0)) < 0)
@ -227,18 +228,17 @@ static int read_huffman_tables(HYuvContext *s, const uint8_t *src, int length)
static int read_old_huffman_tables(HYuvContext *s)
{
GetBitContext gb;
int i;
int ret;
int i, ret;
init_get_bits(&gb, classic_shift_luma,
classic_shift_luma_table_size * 8);
if (read_len_table(s->len[0], &gb, 256) < 0)
return -1;
if ((ret = read_len_table(s->len[0], &gb, 256)) < 0)
return ret;
init_get_bits(&gb, classic_shift_chroma,
classic_shift_chroma_table_size * 8);
if (read_len_table(s->len[1], &gb, 256) < 0)
return -1;
if ((ret = read_len_table(s->len[1], &gb, 256)) < 0)
return ret;
for (i = 0; i < 256; i++)
s->bits[0][i] = classic_add_luma[i];
@ -268,6 +268,7 @@ static int read_old_huffman_tables(HYuvContext *s)
static av_cold int decode_init(AVCodecContext *avctx)
{
HYuvContext *s = avctx->priv_data;
int ret;
ff_huffyuvdsp_init(&s->hdsp);
memset(s->vlc, 0, 4 * sizeof(VLC));
@ -317,9 +318,9 @@ static av_cold int decode_init(AVCodecContext *avctx)
s->interlaced = (interlace == 1) ? 1 : (interlace == 2) ? 0 : s->interlaced;
s->context = avctx->extradata[2] & 0x40 ? 1 : 0;
if (read_huffman_tables(s, avctx->extradata + 4,
avctx->extradata_size - 4) < 0)
return AVERROR_INVALIDDATA;
if ((ret = read_huffman_tables(s, avctx->extradata + 4,
avctx->extradata_size - 4)) < 0)
return ret;
} else {
switch (avctx->bits_per_coded_sample & 7) {
case 1:
@ -346,8 +347,8 @@ static av_cold int decode_init(AVCodecContext *avctx)
s->bitstream_bpp = avctx->bits_per_coded_sample & ~7;
s->context = 0;
if (read_old_huffman_tables(s) < 0)
return AVERROR_INVALIDDATA;
if ((ret = read_old_huffman_tables(s)) < 0)
return ret;
}
if (s->version <= 2) {
@ -526,9 +527,9 @@ static av_cold int decode_init(AVCodecContext *avctx)
av_log(avctx, AV_LOG_ERROR, "width must be a multiple of 4 this colorspace and predictor\n");
return AVERROR_INVALIDDATA;
}
if (ff_huffyuv_alloc_temp(s)) {
if ((ret = ff_huffyuv_alloc_temp(s)) < 0) {
ff_huffyuv_common_end(s);
return AVERROR(ENOMEM);
return ret;
}
return 0;
@ -537,23 +538,23 @@ static av_cold int decode_init(AVCodecContext *avctx)
static av_cold int decode_init_thread_copy(AVCodecContext *avctx)
{
HYuvContext *s = avctx->priv_data;
int i;
int i, ret;
if (ff_huffyuv_alloc_temp(s)) {
if ((ret = ff_huffyuv_alloc_temp(s)) < 0) {
ff_huffyuv_common_end(s);
return AVERROR(ENOMEM);
return ret;
}
for (i = 0; i < 8; i++)
s->vlc[i].table = NULL;
if (s->version >= 2) {
if (read_huffman_tables(s, avctx->extradata + 4,
avctx->extradata_size) < 0)
return AVERROR_INVALIDDATA;
if ((ret = read_huffman_tables(s, avctx->extradata + 4,
avctx->extradata_size)) < 0)
return ret;
} else {
if (read_old_huffman_tables(s) < 0)
return AVERROR_INVALIDDATA;
if ((ret = read_old_huffman_tables(s)) < 0)
return ret;
}
return 0;
@ -874,14 +875,15 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
if (s->context) {
table_size = read_huffman_tables(s, s->bitstream_buffer, buf_size);
if (table_size < 0)
return AVERROR_INVALIDDATA;
return table_size;
}
if ((unsigned) (buf_size - table_size) >= INT_MAX / 8)
return AVERROR_INVALIDDATA;
init_get_bits(&s->gb, s->bitstream_buffer + table_size,
(buf_size - table_size) * 8);
if ((ret = init_get_bits(&s->gb, s->bitstream_buffer + table_size,
(buf_size - table_size) * 8)) < 0)
return ret;
fake_ystride = s->interlaced ? p->linesize[0] * 2 : p->linesize[0];
fake_ustride = s->interlaced ? p->linesize[1] * 2 : p->linesize[1];