component = (n <= 3 ? 0 : n - 4 + 1);
diff = decode_dc(&s->gb, component);
if (diff >= 0xffff)
- return -1;
+ return AVERROR_INVALIDDATA;
dc = s->last_dc[component];
dc += diff;
s->last_dc[component] = dc;
block[0] = dc * quant_matrix[0];
- av_dlog(s->avctx, "dc=%d diff=%d\n", dc, diff);
+ ff_dlog(s->avctx, "dc=%d diff=%d\n", dc, diff);
i = 0;
{
OPEN_READER(re, &s->gb);
}
diff = decode_dc(&s->gb, component);
if (diff >= 0xffff)
- return -1;
+ return AVERROR_INVALIDDATA;
dc = s->last_dc[component];
dc += diff;
s->last_dc[component] = dc;
block[0] = dc << (3 - s->intra_dc_precision);
- av_dlog(s->avctx, "dc=%d\n", block[0]);
+ ff_dlog(s->avctx, "dc=%d\n", block[0]);
mismatch = block[0] ^ 1;
i = 0;
if (s->intra_vlc_format)
}
diff = decode_dc(&s->gb, component);
if (diff >= 0xffff)
- return -1;
+ return AVERROR_INVALIDDATA;
dc = s->last_dc[component];
dc += diff;
s->last_dc[component] = dc;
{
int i, j, k, cbp, val, mb_type, motion_type;
const int mb_block_count = 4 + (1 << s->chroma_format);
+ int ret;
- av_dlog(s->avctx, "decode_mb: x=%d y=%d\n", s->mb_x, s->mb_y);
+ ff_dlog(s->avctx, "decode_mb: x=%d y=%d\n", s->mb_x, s->mb_y);
assert(s->mb_skipped == 0);
// FIXME not sure if this is allowed in MPEG at all
mb_type = s->current_picture.mb_type[s->mb_width + (s->mb_y - 1) * s->mb_stride - 1];
if (IS_INTRA(mb_type))
- return -1;
+ return AVERROR_INVALIDDATA;
s->current_picture.mb_type[s->mb_x + s->mb_y * s->mb_stride] =
mb_type | MB_TYPE_SKIP;
// assert(s->current_picture.mb_type[s->mb_x + s->mb_y * s->mb_stride - 1] & (MB_TYPE_16x16 | MB_TYPE_16x8));
av_log(s->avctx, AV_LOG_ERROR,
"invalid mb type in I Frame at %d %d\n",
s->mb_x, s->mb_y);
- return -1;
+ return AVERROR_INVALIDDATA;
}
mb_type = MB_TYPE_QUANT | MB_TYPE_INTRA;
} else {
if (mb_type < 0) {
av_log(s->avctx, AV_LOG_ERROR,
"invalid mb type in P Frame at %d %d\n", s->mb_x, s->mb_y);
- return -1;
+ return AVERROR_INVALIDDATA;
}
mb_type = ptype2mb_type[mb_type];
break;
if (mb_type < 0) {
av_log(s->avctx, AV_LOG_ERROR,
"invalid mb type in B Frame at %d %d\n", s->mb_x, s->mb_y);
- return -1;
+ return AVERROR_INVALIDDATA;
}
mb_type = btype2mb_type[mb_type];
break;
}
- av_dlog(s->avctx, "mb_type=%x\n", mb_type);
+ ff_dlog(s->avctx, "mb_type=%x\n", mb_type);
// motion_type = 0; /* avoid warning */
if (IS_INTRA(mb_type)) {
s->bdsp.clear_blocks(s->block[0]);
#endif /* FF_API_XVMC */
if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
- if (s->flags2 & CODEC_FLAG2_FAST) {
+ if (s->avctx->flags2 & CODEC_FLAG2_FAST) {
for (i = 0; i < 6; i++)
mpeg2_fast_decode_block_intra(s, *s->pblocks[i], i);
} else {
for (i = 0; i < mb_block_count; i++)
- if (mpeg2_decode_block_intra(s, *s->pblocks[i], i) < 0)
- return -1;
+ if ((ret = mpeg2_decode_block_intra(s, *s->pblocks[i], i)) < 0)
+ return ret;
}
} else {
for (i = 0; i < 6; i++)
- if (mpeg1_decode_block_intra(s, *s->pblocks[i], i) < 0)
- return -1;
+ if ((ret = mpeg1_decode_block_intra(s, *s->pblocks[i], i)) < 0)
+ return ret;
}
} else {
if (mb_type & MB_TYPE_ZERO_MV) {
/* motion vectors */
s->mv_dir = (mb_type >> 13) & 3;
- av_dlog(s->avctx, "motion_type=%d\n", motion_type);
+ ff_dlog(s->avctx, "motion_type=%d\n", motion_type);
switch (motion_type) {
case MT_FRAME: /* or MT_16X8 */
if (s->picture_structure == PICT_FRAME) {
s->last_mv[i][j][0]);
s->last_mv[i][j][0] = val;
s->mv[i][j][0] = val;
- av_dlog(s->avctx, "fmx=%d\n", val);
+ ff_dlog(s->avctx, "fmx=%d\n", val);
val = mpeg_decode_motion(s, s->mpeg_f_code[i][1],
s->last_mv[i][j][1] >> 1);
s->last_mv[i][j][1] = val << 1;
s->mv[i][j][1] = val;
- av_dlog(s->avctx, "fmy=%d\n", val);
+ ff_dlog(s->avctx, "fmy=%d\n", val);
}
}
}
default:
av_log(s->avctx, AV_LOG_ERROR,
"00 motion_type at %d %d\n", s->mb_x, s->mb_y);
- return -1;
+ return AVERROR_INVALIDDATA;
}
}
if (cbp <= 0) {
av_log(s->avctx, AV_LOG_ERROR,
"invalid cbp at %d %d\n", s->mb_x, s->mb_y);
- return -1;
+ return AVERROR_INVALIDDATA;
}
#if FF_API_XVMC
#endif /* FF_API_XVMC */
if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
- if (s->flags2 & CODEC_FLAG2_FAST) {
+ if (s->avctx->flags2 & CODEC_FLAG2_FAST) {
for (i = 0; i < 6; i++) {
if (cbp & 32)
mpeg2_fast_decode_block_non_intra(s, *s->pblocks[i], i);
for (i = 0; i < mb_block_count; i++) {
if (cbp & (1 << 11)) {
- if (mpeg2_decode_block_non_intra(s, *s->pblocks[i], i) < 0)
- return -1;
+ if ((ret = mpeg2_decode_block_non_intra(s, *s->pblocks[i], i)) < 0)
+ return ret;
} else {
s->block_last_index[i] = -1;
}
}
}
} else {
- if (s->flags2 & CODEC_FLAG2_FAST) {
+ if (s->avctx->flags2 & CODEC_FLAG2_FAST) {
for (i = 0; i < 6; i++) {
if (cbp & 32)
mpeg1_fast_decode_block_inter(s, *s->pblocks[i], i);
} else {
for (i = 0; i < 6; i++) {
if (cbp & 32) {
- if (mpeg1_decode_block_inter(s, *s->pblocks[i], i) < 0)
- return -1;
+ if ((ret = mpeg1_decode_block_inter(s, *s->pblocks[i], i)) < 0)
+ return ret;
} else {
s->block_last_index[i] = -1;
}
ff_mpv_decode_defaults(s2);
s->mpeg_enc_ctx.avctx = avctx;
- s->mpeg_enc_ctx.flags = avctx->flags;
- s->mpeg_enc_ctx.flags2 = avctx->flags2;
/* we need some permutation to store matrices,
* until the decoder sets the real permutation. */
if (err)
return err;
- if (!ctx->mpeg_enc_ctx_allocated)
- memcpy(s + 1, s1 + 1, sizeof(Mpeg1Context) - sizeof(MpegEncContext));
+ if (!ctx->mpeg_enc_ctx_allocated) {
+ // copy the whole context after the initial MpegEncContext structure
+ memcpy(ctx, ctx_from, sizeof(*ctx));
+ memset(&ctx->mpeg_enc_ctx, 0, sizeof(ctx->mpeg_enc_ctx));
+ }
if (!(s->pict_type == AV_PICTURE_TYPE_B || s->low_delay))
s->picture_number++;
s->parse_context = pc;
}
- if ((s->width == 0) || (s->height == 0))
- return -2;
-
ret = ff_set_dimensions(avctx, s->width, s->height);
if (ret < 0)
return ret;
if (avctx->codec_id == AV_CODEC_ID_MPEG1VIDEO) {
// MPEG-1 fps
- avctx->time_base.den = ff_mpeg12_frame_rate_tab[s->frame_rate_index].num;
- avctx->time_base.num = ff_mpeg12_frame_rate_tab[s->frame_rate_index].den;
+ avctx->framerate = ff_mpeg12_frame_rate_tab[s->frame_rate_index];
// MPEG-1 aspect
avctx->sample_aspect_ratio = av_d2q(1.0 / ff_mpeg1_aspect[s->aspect_ratio_info], 255);
avctx->ticks_per_frame = 1;
} else { // MPEG-2
// MPEG-2 fps
- av_reduce(&s->avctx->time_base.den,
- &s->avctx->time_base.num,
+ av_reduce(&s->avctx->framerate.num,
+ &s->avctx->framerate.den,
ff_mpeg12_frame_rate_tab[s->frame_rate_index].num * s1->frame_rate_ext.num * 2,
ff_mpeg12_frame_rate_tab[s->frame_rate_index].den * s1->frame_rate_ext.den,
1 << 30);
// res_change_ffmpeg_aspect.ts 4/3 225/44 ->4/3
// widescreen-issue562.mpg 4/3 16/9 -> 16/9
// s->avctx->sample_aspect_ratio = av_mul_q(s->avctx->sample_aspect_ratio, (AVRational) {s->width, s->height});
- av_dlog(avctx, "A %d/%d\n",
+ ff_dlog(avctx, "A %d/%d\n",
ff_mpeg2_aspect[s->aspect_ratio_info].num,
ff_mpeg2_aspect[s->aspect_ratio_info].den);
- av_dlog(avctx, "B %d/%d\n", s->avctx->sample_aspect_ratio.num,
+ ff_dlog(avctx, "B %d/%d\n", s->avctx->sample_aspect_ratio.num,
s->avctx->sample_aspect_ratio.den);
}
} else {
memcpy(old_permutation, s->idsp.idct_permutation, 64 * sizeof(uint8_t));
ff_mpv_idct_init(s);
- if (ff_mpv_common_init(s) < 0)
- return -2;
+ if ((ret = ff_mpv_common_init(s)) < 0)
+ return ret;
quant_matrix_rebuild(s->intra_matrix, old_permutation, s->idsp.idct_permutation);
quant_matrix_rebuild(s->inter_matrix, old_permutation, s->idsp.idct_permutation);
ref = get_bits(&s->gb, 10); /* temporal ref */
s->pict_type = get_bits(&s->gb, 3);
if (s->pict_type == 0 || s->pict_type > 3)
- return -1;
+ return AVERROR_INVALIDDATA;
vbv_delay = get_bits(&s->gb, 16);
if (s->pict_type == AV_PICTURE_TYPE_P ||
s->full_pel[0] = get_bits1(&s->gb);
f_code = get_bits(&s->gb, 3);
if (f_code == 0 && (avctx->err_recognition & AV_EF_BITSTREAM))
- return -1;
+ return AVERROR_INVALIDDATA;
s->mpeg_f_code[0][0] = f_code;
s->mpeg_f_code[0][1] = f_code;
}
s->full_pel[1] = get_bits1(&s->gb);
f_code = get_bits(&s->gb, 3);
if (f_code == 0 && (avctx->err_recognition & AV_EF_BITSTREAM))
- return -1;
+ return AVERROR_INVALIDDATA;
s->mpeg_f_code[1][0] = f_code;
s->mpeg_f_code[1][1] = f_code;
}
s->avctx->rc_buffer_size += get_bits(&s->gb, 8) * 1024 * 16 << 10;
s->low_delay = get_bits1(&s->gb);
- if (s->flags & CODEC_FLAG_LOW_DELAY)
+ if (s->avctx->flags & CODEC_FLAG_LOW_DELAY)
s->low_delay = 1;
s1->frame_rate_ext.num = get_bits(&s->gb, 2) + 1;
s1->frame_rate_ext.den = get_bits(&s->gb, 5) + 1;
- av_dlog(s->avctx, "sequence extension\n");
+ ff_dlog(s->avctx, "sequence extension\n");
s->codec_id = s->avctx->codec_id = AV_CODEC_ID_MPEG2VIDEO;
if (s->avctx->debug & FF_DEBUG_PICT_INFO)
int v = get_bits(&s->gb, 8);
if (v == 0) {
av_log(s->avctx, AV_LOG_ERROR, "matrix damaged\n");
- return -1;
+ return AVERROR_INVALIDDATA;
}
if (intra && i == 0 && v != 8) {
av_log(s->avctx, AV_LOG_ERROR, "intra matrix invalid, ignoring\n");
static void mpeg_decode_quant_matrix_extension(MpegEncContext *s)
{
- av_dlog(s->avctx, "matrix extension\n");
+ ff_dlog(s->avctx, "matrix extension\n");
if (get_bits1(&s->gb))
load_matrix(s, s->chroma_intra_matrix, s->intra_matrix, 1);
}
/* composite display not parsed */
- av_dlog(s->avctx, "intra_dc_precision=%d\n", s->intra_dc_precision);
- av_dlog(s->avctx, "picture_structure=%d\n", s->picture_structure);
- av_dlog(s->avctx, "top field first=%d\n", s->top_field_first);
- av_dlog(s->avctx, "repeat first field=%d\n", s->repeat_first_field);
- av_dlog(s->avctx, "conceal=%d\n", s->concealment_motion_vectors);
- av_dlog(s->avctx, "intra_vlc_format=%d\n", s->intra_vlc_format);
- av_dlog(s->avctx, "alternate_scan=%d\n", s->alternate_scan);
- av_dlog(s->avctx, "frame_pred_frame_dct=%d\n", s->frame_pred_frame_dct);
- av_dlog(s->avctx, "progressive_frame=%d\n", s->progressive_frame);
+ ff_dlog(s->avctx, "intra_dc_precision=%d\n", s->intra_dc_precision);
+ ff_dlog(s->avctx, "picture_structure=%d\n", s->picture_structure);
+ ff_dlog(s->avctx, "top field first=%d\n", s->top_field_first);
+ ff_dlog(s->avctx, "repeat first field=%d\n", s->repeat_first_field);
+ ff_dlog(s->avctx, "conceal=%d\n", s->concealment_motion_vectors);
+ ff_dlog(s->avctx, "intra_vlc_format=%d\n", s->intra_vlc_format);
+ ff_dlog(s->avctx, "alternate_scan=%d\n", s->alternate_scan);
+ ff_dlog(s->avctx, "frame_pred_frame_dct=%d\n", s->frame_pred_frame_dct);
+ ff_dlog(s->avctx, "progressive_frame=%d\n", s->progressive_frame);
}
static int mpeg_field_start(MpegEncContext *s, const uint8_t *buf, int buf_size)
{
AVCodecContext *avctx = s->avctx;
Mpeg1Context *s1 = (Mpeg1Context *) s;
+ int ret;
/* start frame decoding */
if (s->first_field || s->picture_structure == PICT_FRAME) {
AVFrameSideData *pan_scan;
- if (ff_mpv_frame_start(s, avctx) < 0)
- return -1;
+ if ((ret = ff_mpv_frame_start(s, avctx)) < 0)
+ return ret;
ff_mpeg_er_frame_start(s);
if (!s->current_picture_ptr) {
av_log(s->avctx, AV_LOG_ERROR, "first field missing\n");
- return -1;
+ return AVERROR_INVALIDDATA;
}
if (s->avctx->hwaccel &&
}
if (avctx->hwaccel) {
- if (avctx->hwaccel->start_frame(avctx, buf, buf_size) < 0)
- return -1;
+ if ((ret = avctx->hwaccel->start_frame(avctx, buf, buf_size)) < 0)
+ return ret;
}
#if FF_API_XVMC
{
AVCodecContext *avctx = s->avctx;
const int field_pic = s->picture_structure != PICT_FRAME;
+ int ret;
s->resync_mb_x =
s->resync_mb_y = -1;
if (s->qscale == 0) {
av_log(s->avctx, AV_LOG_ERROR, "qscale == 0\n");
- return -1;
+ return AVERROR_INVALIDDATA;
}
/* extra slice info */
MBINCR_VLC_BITS, 2);
if (code < 0) {
av_log(s->avctx, AV_LOG_ERROR, "first mb_incr damaged\n");
- return -1;
+ return AVERROR_INVALIDDATA;
}
if (code >= 33) {
if (code == 33)
if (s->mb_x >= (unsigned) s->mb_width) {
av_log(s->avctx, AV_LOG_ERROR, "initial skip overflow\n");
- return -1;
+ return AVERROR_INVALIDDATA;
}
if (avctx->hwaccel) {
FF_ENABLE_DEPRECATION_WARNINGS
#endif /* FF_API_XVMC */
- if (mpeg_decode_mb(s, s->block) < 0)
- return -1;
+ if ((ret = mpeg_decode_mb(s, s->block)) < 0)
+ return ret;
// Note motion_val is normally NULL unless we want to extract the MVs.
if (s->current_picture.motion_val[0] && !s->encoding) {
((avctx->err_recognition & AV_EF_BUFFER) && left > 8)) {
av_log(avctx, AV_LOG_ERROR, "end mismatch left=%d %0X\n",
left, show_bits(&s->gb, FFMIN(left, 23)));
- return -1;
+ return AVERROR_INVALIDDATA;
} else
goto eos;
}
MBINCR_VLC_BITS, 2);
if (code < 0) {
av_log(s->avctx, AV_LOG_ERROR, "mb incr damaged\n");
- return -1;
+ return AVERROR_INVALIDDATA;
}
if (code >= 33) {
if (code == 33) {
} else if (code == 35) {
if (s->mb_skip_run != 0 || show_bits(&s->gb, 15) != 0) {
av_log(s->avctx, AV_LOG_ERROR, "slice mismatch\n");
- return -1;
+ return AVERROR_INVALIDDATA;
}
goto eos; /* end of slice */
}
if (s->pict_type == AV_PICTURE_TYPE_I) {
av_log(s->avctx, AV_LOG_ERROR,
"skipped MB in I frame at %d %d\n", s->mb_x, s->mb_y);
- return -1;
+ return AVERROR_INVALIDDATA;
}
/* skip mb */
}
eos: // end of slice
*buf += (get_bits_count(&s->gb) - 1) / 8;
- av_dlog(s, "y %d %d %d %d\n", s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y);
+ ff_dlog(s, "y %d %d %d %d\n", s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y);
return 0;
}
ret = mpeg_decode_slice(s, mb_y, &buf, s->gb.buffer_end - buf);
emms_c();
- av_dlog(c, "ret:%d resync:%d/%d mb:%d/%d ts:%d/%d ec:%d\n",
+ ff_dlog(c, "ret:%d resync:%d/%d mb:%d/%d ts:%d/%d ec:%d\n",
ret, s->resync_mb_x, s->resync_mb_y, s->mb_x, s->mb_y,
s->start_mb_y, s->end_mb_y, s->er.error_count);
if (ret < 0) {
if (s->picture_structure == PICT_BOTTOM_FIELD)
mb_y++;
if (mb_y < 0 || mb_y >= s->end_mb_y)
- return -1;
+ return AVERROR_INVALIDDATA;
}
}
if (s->aspect_ratio_info == 0) {
av_log(avctx, AV_LOG_ERROR, "aspect ratio has forbidden 0 value\n");
if (avctx->err_recognition & AV_EF_BITSTREAM)
- return -1;
+ return AVERROR_INVALIDDATA;
}
s->frame_rate_index = get_bits(&s->gb, 4);
- if (s->frame_rate_index == 0 || s->frame_rate_index > 13)
- return -1;
+ if (s->frame_rate_index == 0 || s->frame_rate_index > 13) {
+ av_log(avctx, AV_LOG_WARNING,
+ "frame_rate_index %d is invalid\n", s->frame_rate_index);
+ return AVERROR_INVALIDDATA;
+ }
s->bit_rate = get_bits(&s->gb, 18) * 400;
- if (get_bits1(&s->gb) == 0) /* marker */
- return -1;
+ if (get_bits1(&s->gb) == 0) { /* marker */
+ av_log(avctx, AV_LOG_ERROR, "Marker in sequence header missing\n");
+ return AVERROR_INVALIDDATA;
+ }
s->width = width;
s->height = height;
if (show_bits(&s->gb, 23) != 0) {
av_log(s->avctx, AV_LOG_ERROR, "sequence header damaged\n");
- return -1;
+ return AVERROR_INVALIDDATA;
}
/* We set MPEG-2 parameters so that it emulates MPEG-1. */
s->codec_id =
s->avctx->codec_id = AV_CODEC_ID_MPEG1VIDEO;
s->out_format = FMT_MPEG1;
- if (s->flags & CODEC_FLAG_LOW_DELAY)
+ if (s->avctx->flags & CODEC_FLAG_LOW_DELAY)
s->low_delay = 1;
if (s->avctx->debug & FF_DEBUG_PICT_INFO)
{
Mpeg1Context *s1 = avctx->priv_data;
MpegEncContext *s = &s1->mpeg_enc_ctx;
- int i, v;
+ int i, v, ret;
/* start new MPEG-1 context decoding */
s->out_format = FMT_MPEG1;
avctx->idct_algo = FF_IDCT_SIMPLE;
ff_mpv_idct_init(s);
- if (ff_mpv_common_init(s) < 0)
- return -1;
+ if ((ret = ff_mpv_common_init(s)) < 0)
+ return ret;
s1->mpeg_enc_ctx_allocated = 1;
for (i = 0; i < 64; i++) {
if (mb_y >= s2->mb_height) {
av_log(s2->avctx, AV_LOG_ERROR,
"slice below image (%d >= %d)\n", mb_y, s2->mb_height);
- return -1;
+ return AVERROR_INVALIDDATA;
}
if (!s2->last_picture_ptr) {
if (s->first_slice) {
skip_frame = 0;
s->first_slice = 0;
- if (mpeg_field_start(s2, buf, buf_size) < 0)
- return -1;
+ if ((ret = mpeg_field_start(s2, buf, buf_size)) < 0)
+ return ret;
}
if (!s2->current_picture_ptr) {
av_log(avctx, AV_LOG_ERROR,
Mpeg1Context *s = avctx->priv_data;
AVFrame *picture = data;
MpegEncContext *s2 = &s->mpeg_enc_ctx;
- av_dlog(avctx, "fill_buffer\n");
+ ff_dlog(avctx, "fill_buffer\n");
if (buf_size == 0 || (buf_size == 4 && AV_RB32(buf) == SEQ_END_CODE)) {
/* special case for last picture */
return buf_size;
}
- if (s2->flags & CODEC_FLAG_TRUNCATED) {
+ if (s2->avctx->flags & CODEC_FLAG_TRUNCATED) {
int next = ff_mpeg1_find_frame_end(&s2->parse_context, buf,
buf_size, NULL);
if (!(avctx->slice_flags & SLICE_FLAG_CODED_ORDER))
return -1;
if (!(avctx->slice_flags & SLICE_FLAG_ALLOW_FIELD)) {
- av_dlog(avctx, "mpeg12.c: XvMC decoder will work better if SLICE_FLAG_ALLOW_FIELD is set\n");
+ ff_dlog(avctx, "mpeg12.c: XvMC decoder will work better if SLICE_FLAG_ALLOW_FIELD is set\n");
}
mpeg_decode_init(avctx);
projects / ffmpeg / blobdiff