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Code Issues Releases Activity

avcodec/mpeg4videodec: Use check_marker()

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer
2015-04-19 15:34:43 +02:00
parent 22c0585a00
commit 9a0f60a0f8
1 changed files with 15 additions and 15 deletions
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30
libavcodec/mpeg4videodec.c
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@@ -193,13 +193,13 @@ static int mpeg4_decode_sprite_trajectory(Mpeg4DecContext *ctx, GetBitContext *g
x = get_xbits(gb, length); x = get_xbits(gb, length);
if (!(ctx->divx_version == 500 && ctx->divx_build == 413)) if (!(ctx->divx_version == 500 && ctx->divx_build == 413))
skip_bits1(gb); /* marker bit */ check_marker(gb, "before sprite_trajectory");
length = get_vlc2(gb, sprite_trajectory.table, SPRITE_TRAJ_VLC_BITS, 3); length = get_vlc2(gb, sprite_trajectory.table, SPRITE_TRAJ_VLC_BITS, 3);
if (length) if (length)
y = get_xbits(gb, length); y = get_xbits(gb, length);
skip_bits1(gb); /* marker bit */ check_marker(gb, "after sprite_trajectory");
ctx->sprite_traj[i][0] = d[i][0] = x; ctx->sprite_traj[i][0] = d[i][0] = x;
ctx->sprite_traj[i][1] = d[i][1] = y; ctx->sprite_traj[i][1] = d[i][1] = y;
} }
@@ -1677,7 +1677,7 @@ static int mpeg4_decode_gop_header(MpegEncContext *s, GetBitContext *gb)
hours = get_bits(gb, 5); hours = get_bits(gb, 5);
minutes = get_bits(gb, 6); minutes = get_bits(gb, 6);
skip_bits1(gb); check_marker(gb, "in gop_header");
seconds = get_bits(gb, 6); seconds = get_bits(gb, 6);
s->time_base = seconds + 60*(minutes + 60*hours); s->time_base = seconds + 60*(minutes + 60*hours);
@@ -1732,16 +1732,16 @@ static int decode_vol_header(Mpeg4DecContext *ctx, GetBitContext *gb)
s->low_delay = get_bits1(gb); s->low_delay = get_bits1(gb);
if (get_bits1(gb)) { /* vbv parameters */ if (get_bits1(gb)) { /* vbv parameters */
get_bits(gb, 15); /* first_half_bitrate */ get_bits(gb, 15); /* first_half_bitrate */
skip_bits1(gb); /* marker */ check_marker(gb, "after first_half_bitrate");
get_bits(gb, 15); /* latter_half_bitrate */ get_bits(gb, 15); /* latter_half_bitrate */
skip_bits1(gb); /* marker */ check_marker(gb, "after latter_half_bitrate");
get_bits(gb, 15); /* first_half_vbv_buffer_size */ get_bits(gb, 15); /* first_half_vbv_buffer_size */
skip_bits1(gb); /* marker */ check_marker(gb, "after first_half_vbv_buffer_size");
get_bits(gb, 3); /* latter_half_vbv_buffer_size */ get_bits(gb, 3); /* latter_half_vbv_buffer_size */
get_bits(gb, 11); /* first_half_vbv_occupancy */ get_bits(gb, 11); /* first_half_vbv_occupancy */
skip_bits1(gb); /* marker */ check_marker(gb, "after first_half_vbv_occupancy");
get_bits(gb, 15); /* latter_half_vbv_occupancy */ get_bits(gb, 15); /* latter_half_vbv_occupancy */
skip_bits1(gb); /* marker */ check_marker(gb, "after latter_half_vbv_occupancy");
} }
} else { } else {
/* is setting low delay flag only once the smartest thing to do? /* is setting low delay flag only once the smartest thing to do?
@@ -1815,13 +1815,13 @@ static int decode_vol_header(Mpeg4DecContext *ctx, GetBitContext *gb)
ctx->vol_sprite_usage == GMC_SPRITE) { ctx->vol_sprite_usage == GMC_SPRITE) {
if (ctx->vol_sprite_usage == STATIC_SPRITE) { if (ctx->vol_sprite_usage == STATIC_SPRITE) {
skip_bits(gb, 13); // sprite_width skip_bits(gb, 13); // sprite_width
skip_bits1(gb); /* marker */ check_marker(gb, "after sprite_width");
skip_bits(gb, 13); // sprite_height skip_bits(gb, 13); // sprite_height
skip_bits1(gb); /* marker */ check_marker(gb, "after sprite_height");
skip_bits(gb, 13); // sprite_left skip_bits(gb, 13); // sprite_left
skip_bits1(gb); /* marker */ check_marker(gb, "after sprite_left");
skip_bits(gb, 13); // sprite_top skip_bits(gb, 13); // sprite_top
skip_bits1(gb); /* marker */ check_marker(gb, "after sprite_top");
} }
ctx->num_sprite_warping_points = get_bits(gb, 6); ctx->num_sprite_warping_points = get_bits(gb, 6);
if (ctx->num_sprite_warping_points > 3) { if (ctx->num_sprite_warping_points > 3) {
@@ -2343,11 +2343,11 @@ static int decode_vop_header(Mpeg4DecContext *ctx, GetBitContext *gb)
if (ctx->shape != RECT_SHAPE) { if (ctx->shape != RECT_SHAPE) {
if (ctx->vol_sprite_usage != 1 || s->pict_type != AV_PICTURE_TYPE_I) { if (ctx->vol_sprite_usage != 1 || s->pict_type != AV_PICTURE_TYPE_I) {
skip_bits(gb, 13); /* width */ skip_bits(gb, 13); /* width */
skip_bits1(gb); /* marker */ check_marker(gb, "after width");
skip_bits(gb, 13); /* height */ skip_bits(gb, 13); /* height */
skip_bits1(gb); /* marker */ check_marker(gb, "after height");
skip_bits(gb, 13); /* hor_spat_ref */ skip_bits(gb, 13); /* hor_spat_ref */
skip_bits1(gb); /* marker */ check_marker(gb, "after hor_spat_ref");
skip_bits(gb, 13); /* ver_spat_ref */ skip_bits(gb, 13); /* ver_spat_ref */
} }
skip_bits1(gb); /* change_CR_disable */ skip_bits1(gb); /* change_CR_disable */