Module: libav Branch: release/0.8 Commit: 9def2f200e55f625161b4040aa5ce2d86ae69ed3
Author: Ronald S. Bultje <[email protected]> Committer: Reinhard Tartler <[email protected]> Date: Tue Mar 6 10:27:05 2012 -0800 error_resilience: initialize s->block_index[]. Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind CC: [email protected] (cherry picked from commit 6193ff68549ecbaf1a4d63a0e06964ec580ac620) Signed-off-by: Reinhard Tartler <[email protected]> --- libavcodec/error_resilience.c | 20 ++++++++++++++++++++ 1 files changed, 20 insertions(+), 0 deletions(-) diff --git a/libavcodec/error_resilience.c b/libavcodec/error_resilience.c index bf59efa..96f49c8 100644 --- a/libavcodec/error_resilience.c +++ b/libavcodec/error_resilience.c @@ -419,9 +419,14 @@ static void guess_mv(MpegEncContext *s) if ((!(s->avctx->error_concealment&FF_EC_GUESS_MVS)) || num_avail <= mb_width / 2) { for (mb_y = 0; mb_y < s->mb_height; mb_y++) { + s->mb_x = 0; + s->mb_y = mb_y; + ff_init_block_index(s); for (mb_x = 0; mb_x < s->mb_width; mb_x++) { const int mb_xy = mb_x + mb_y * s->mb_stride; + ff_update_block_index(s); + if (IS_INTRA(s->current_picture.f.mb_type[mb_xy])) continue; if (!(s->error_status_table[mb_xy] & ER_MV_ERROR)) @@ -456,6 +461,9 @@ static void guess_mv(MpegEncContext *s) changed = 0; for (mb_y = 0; mb_y < s->mb_height; mb_y++) { + s->mb_x = 0; + s->mb_y = mb_y; + ff_init_block_index(s); for (mb_x = 0; mb_x < s->mb_width; mb_x++) { const int mb_xy = mb_x + mb_y * s->mb_stride; int mv_predictor[8][2] = { { 0 } }; @@ -467,6 +475,8 @@ static void guess_mv(MpegEncContext *s) const int mot_index = (mb_x + mb_y * mot_stride) * mot_step; int prev_x, prev_y, prev_ref; + ff_update_block_index(s); + if ((mb_x ^ mb_y ^ pass) & 1) continue; @@ -1072,11 +1082,16 @@ void ff_er_frame_end(MpegEncContext *s) /* handle inter blocks with damaged AC */ for (mb_y = 0; mb_y < s->mb_height; mb_y++) { + s->mb_x = 0; + s->mb_y = mb_y; + ff_init_block_index(s); for (mb_x = 0; mb_x < s->mb_width; mb_x++) { const int mb_xy = mb_x + mb_y * s->mb_stride; const int mb_type = s->current_picture.f.mb_type[mb_xy]; int dir = !s->last_picture.f.data[0]; + ff_update_block_index(s); + error = s->error_status_table[mb_xy]; if (IS_INTRA(mb_type)) @@ -1114,11 +1129,16 @@ void ff_er_frame_end(MpegEncContext *s) /* guess MVs */ if (s->pict_type == AV_PICTURE_TYPE_B) { for (mb_y = 0; mb_y < s->mb_height; mb_y++) { + s->mb_x = 0; + s->mb_y = mb_y; + ff_init_block_index(s); for (mb_x = 0; mb_x < s->mb_width; mb_x++) { int xy = mb_x * 2 + mb_y * 2 * s->b8_stride; const int mb_xy = mb_x + mb_y * s->mb_stride; const int mb_type = s->current_picture.f.mb_type[mb_xy]; + ff_update_block_index(s); + error = s->error_status_table[mb_xy]; if (IS_INTRA(mb_type)) _______________________________________________ libav-commits mailing list [email protected] https://lists.libav.org/mailman/listinfo/libav-commits
