diff options
Diffstat (limited to 'libavcodec/rv10.c')
-rw-r--r-- | libavcodec/rv10.c | 38 |
1 files changed, 23 insertions, 15 deletions
diff --git a/libavcodec/rv10.c b/libavcodec/rv10.c index bc86b69a2e..ab382ac7bc 100644 --- a/libavcodec/rv10.c +++ b/libavcodec/rv10.c @@ -40,6 +40,11 @@ #define DC_VLC_BITS 14 //FIXME find a better solution +typedef struct RVDecContext { + MpegEncContext m; + int sub_id; +} RVDecContext; + static const uint16_t rv_lum_code[256] = { 0x3e7f, 0x0f00, 0x0f01, 0x0f02, 0x0f03, 0x0f04, 0x0f05, 0x0f06, @@ -293,8 +298,9 @@ static int rv10_decode_picture_header(MpegEncContext *s) return mb_count; } -static int rv20_decode_picture_header(MpegEncContext *s) +static int rv20_decode_picture_header(RVDecContext *rv) { + MpegEncContext *s = &rv->m; int seq, mb_pos, i; int rpr_bits; @@ -342,10 +348,10 @@ static int rv20_decode_picture_header(MpegEncContext *s) return -1; } - if(RV_GET_MINOR_VER(s->avctx->sub_id) >= 2) + if(RV_GET_MINOR_VER(rv->sub_id) >= 2) s->loop_filter = get_bits1(&s->gb); - if(RV_GET_MINOR_VER(s->avctx->sub_id) <= 1) + if(RV_GET_MINOR_VER(rv->sub_id) <= 1) seq = get_bits(&s->gb, 8) << 7; else seq = get_bits(&s->gb, 13) << 2; @@ -410,7 +416,7 @@ static int rv20_decode_picture_header(MpegEncContext *s) av_log(s->avctx, AV_LOG_DEBUG, "\n");*/ s->no_rounding= get_bits1(&s->gb); - if(RV_GET_MINOR_VER(s->avctx->sub_id) <= 1 && s->pict_type == AV_PICTURE_TYPE_B) + if(RV_GET_MINOR_VER(rv->sub_id) <= 1 && s->pict_type == AV_PICTURE_TYPE_B) skip_bits(&s->gb, 5); // binary decoder reads 3+2 bits here but they don't seem to be used s->f_code = 1; @@ -435,7 +441,8 @@ av_log(s->avctx, AV_LOG_DEBUG, "\n");*/ static av_cold int rv10_decode_init(AVCodecContext *avctx) { - MpegEncContext *s = avctx->priv_data; + RVDecContext *rv = avctx->priv_data; + MpegEncContext *s = &rv->m; static int done=0; int major_ver, minor_ver, micro_ver; @@ -454,11 +461,11 @@ static av_cold int rv10_decode_init(AVCodecContext *avctx) s->orig_height= s->height = avctx->coded_height; s->h263_long_vectors= ((uint8_t*)avctx->extradata)[3] & 1; - avctx->sub_id= AV_RB32((uint8_t*)avctx->extradata + 4); + rv->sub_id = AV_RB32((uint8_t*)avctx->extradata + 4); - major_ver = RV_GET_MAJOR_VER(avctx->sub_id); - minor_ver = RV_GET_MINOR_VER(avctx->sub_id); - micro_ver = RV_GET_MICRO_VER(avctx->sub_id); + major_ver = RV_GET_MAJOR_VER(rv->sub_id); + minor_ver = RV_GET_MINOR_VER(rv->sub_id); + micro_ver = RV_GET_MICRO_VER(rv->sub_id); s->low_delay = 1; switch (major_ver) { @@ -473,13 +480,13 @@ static av_cold int rv10_decode_init(AVCodecContext *avctx) } break; default: - av_log(s->avctx, AV_LOG_ERROR, "unknown header %X\n", avctx->sub_id); + av_log(s->avctx, AV_LOG_ERROR, "unknown header %X\n", rv->sub_id); av_log_missing_feature(avctx, "RV1/2 version", 1); return AVERROR_PATCHWELCOME; } if(avctx->debug & FF_DEBUG_PICT_INFO){ - av_log(avctx, AV_LOG_DEBUG, "ver:%X ver0:%X\n", avctx->sub_id, avctx->extradata_size >= 4 ? ((uint32_t*)avctx->extradata)[0] : -1); + av_log(avctx, AV_LOG_DEBUG, "ver:%X ver0:%X\n", rv->sub_id, avctx->extradata_size >= 4 ? ((uint32_t*)avctx->extradata)[0] : -1); } avctx->pix_fmt = PIX_FMT_YUV420P; @@ -514,7 +521,8 @@ static av_cold int rv10_decode_end(AVCodecContext *avctx) static int rv10_decode_packet(AVCodecContext *avctx, const uint8_t *buf, int buf_size, int buf_size2) { - MpegEncContext *s = avctx->priv_data; + RVDecContext *rv = avctx->priv_data; + MpegEncContext *s = &rv->m; int mb_count, mb_pos, left, start_mb_x, active_bits_size; active_bits_size = buf_size * 8; @@ -522,7 +530,7 @@ static int rv10_decode_packet(AVCodecContext *avctx, if(s->codec_id ==CODEC_ID_RV10) mb_count = rv10_decode_picture_header(s); else - mb_count = rv20_decode_picture_header(s); + mb_count = rv20_decode_picture_header(rv); if (mb_count < 0) { av_log(s->avctx, AV_LOG_ERROR, "HEADER ERROR\n"); return -1; @@ -733,7 +741,7 @@ AVCodec ff_rv10_decoder = { .name = "rv10", .type = AVMEDIA_TYPE_VIDEO, .id = CODEC_ID_RV10, - .priv_data_size = sizeof(MpegEncContext), + .priv_data_size = sizeof(RVDecContext), .init = rv10_decode_init, .close = rv10_decode_end, .decode = rv10_decode_frame, @@ -747,7 +755,7 @@ AVCodec ff_rv20_decoder = { .name = "rv20", .type = AVMEDIA_TYPE_VIDEO, .id = CODEC_ID_RV20, - .priv_data_size = sizeof(MpegEncContext), + .priv_data_size = sizeof(RVDecContext), .init = rv10_decode_init, .close = rv10_decode_end, .decode = rv10_decode_frame, |