diff options
Diffstat (limited to 'libavcodec/ffv1enc.c')
-rw-r--r-- | libavcodec/ffv1enc.c | 72 |
1 files changed, 35 insertions, 37 deletions
diff --git a/libavcodec/ffv1enc.c b/libavcodec/ffv1enc.c index 7995376..3bc22ed 100644 --- a/libavcodec/ffv1enc.c +++ b/libavcodec/ffv1enc.c @@ -380,7 +380,7 @@ static void write_quant_tables(RangeCoder *c, static void write_header(FFV1Context *f) { uint8_t state[CONTEXT_SIZE]; - int i, j; + int i; RangeCoder *const c = &f->slice_context[0]->c; memset(state, 128, sizeof(state)); @@ -402,25 +402,6 @@ static void write_header(FFV1Context *f) put_rac(c, state, f->transparency); write_quant_tables(c, f->quant_table); - } else if (f->version < 3) { - put_symbol(c, state, f->slice_count, 0); - for (i = 0; i < f->slice_count; i++) { - FFV1Context *fs = f->slice_context[i]; - put_symbol(c, state, - (fs->slice_x + 1) * f->num_h_slices / f->width, 0); - put_symbol(c, state, - (fs->slice_y + 1) * f->num_v_slices / f->height, 0); - put_symbol(c, state, - (fs->slice_width + 1) * f->num_h_slices / f->width - 1, - 0); - put_symbol(c, state, - (fs->slice_height + 1) * f->num_v_slices / f->height - 1, - 0); - for (j = 0; j < f->plane_count; j++) { - put_symbol(c, state, f->plane[j].quant_table_index, 0); - av_assert0(f->plane[j].quant_table_index == f->context_model); - } - } } } @@ -442,7 +423,7 @@ static int write_extradata(FFV1Context *f) ff_build_rac_states(c, 0.05 * (1LL << 32), 256 - 8); put_symbol(c, state, f->version, 0); - if (f->version > 2) { + if (f->version > 1) { if (f->version == 3) f->minor_version = 2; put_symbol(c, state, f->minor_version, 0); @@ -566,27 +547,44 @@ static av_cold int ffv1_encode_init(AVCodecContext *avctx) s->version = 0; - if ((avctx->flags & (AV_CODEC_FLAG_PASS1 | AV_CODEC_FLAG_PASS2)) || - avctx->slices > 1) - s->version = FFMAX(s->version, 2); - - if (avctx->level == 3) { - s->version = 3; + switch (avctx->level) { + case 3: + break; + case 2: + av_log(avctx, AV_LOG_ERROR, + "Version 2 had been deemed non-standard and deprecated " + "the support for it had been removed\n"); + return AVERROR(ENOSYS); + case 1: + case 0: + if (avctx->flags & (AV_CODEC_FLAG_PASS1 | AV_CODEC_FLAG_PASS2)) { + av_log(avctx, AV_LOG_ERROR, + "Multiple pass encoding requires version 3.\n"); + return AVERROR(ENOSYS); + } + if (avctx->slices > 1) { + av_log(avctx, AV_LOG_ERROR, + "Multiple slices support requires version 3.\n"); + return AVERROR(ENOSYS); + } + break; + case FF_LEVEL_UNKNOWN: + if ((avctx->flags & (AV_CODEC_FLAG_PASS1 | AV_CODEC_FLAG_PASS2)) || + avctx->slices > 1) + s->version = 3; + else + s->version = 0; + break; + default: + av_log(avctx, AV_LOG_ERROR, "Version %d not supported\n", + avctx->level); + return AVERROR(ENOSYS); } if (s->ec < 0) { s->ec = (s->version >= 3); } - if (s->version >= 2 && - avctx->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) { - av_log(avctx, AV_LOG_ERROR, - "Version %d requested, please set -strict experimental in " - "order to enable it\n", - s->version); - return AVERROR(ENOSYS); - } - #if FF_API_CODER_TYPE FF_DISABLE_DEPRECATION_WARNINGS if (avctx->coder_type != -1) @@ -754,7 +752,7 @@ FF_ENABLE_DEPRECATION_WARNINGS int gob_count = 0; char *next; - av_assert0(s->version >= 2); + av_assert0(s->version > 2); for (;; ) { for (j = 0; j < 256; j++) |