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ffmpeg.wasm-core
Commit 0b82fdcc authored by Michael Niedermayer's avatar Michael Niedermayer
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Merge commit '037fea38' 

* commit '037fea38':
  flashsv: K&R formatting cosmetics

Conflicts:
	libavcodec/flashsv.c
Merged-by: 's avatarMichael Niedermayer <michaelni@gmx.at>
parents 7146eacf 037fea38
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Showing with 30 additions and 27 deletions
libavcodec/flashsv.c
View file @ 0b82fdcc
...@@ -69,14 +69,13 @@ typedef struct FlashSVContext { ...@@ -69,14 +69,13 @@ typedef struct FlashSVContext {
int diff_start, diff_height; int diff_start, diff_height;
} FlashSVContext; } FlashSVContext;
static int decode_hybrid(const uint8_t *sptr, uint8_t *dptr, int dx, int dy, static int decode_hybrid(const uint8_t *sptr, uint8_t *dptr, int dx, int dy,
int h, int w, int stride, const uint32_t *pal) int h, int w, int stride, const uint32_t *pal)
{ {
int x, y; int x, y;
const uint8_t *orig_src = sptr; const uint8_t *orig_src = sptr;
for (y = dx+h; y > dx; y--) { for (y = dx + h; y > dx; y--) {
uint8_t *dst = dptr + (y * stride) + dy * 3; uint8_t *dst = dptr + (y * stride) + dy * 3;
for (x = 0; x < w; x++) { for (x = 0; x < w; x++) {
if (*sptr & 0x80) { if (*sptr & 0x80) {
...@@ -120,7 +119,6 @@ static av_cold int flashsv_decode_init(AVCodecContext *avctx) ...@@ -120,7 +119,6 @@ static av_cold int flashsv_decode_init(AVCodecContext *avctx)
return 0; return 0;
} }
static int flashsv2_prime(FlashSVContext *s, uint8_t *src, int size) static int flashsv2_prime(FlashSVContext *s, uint8_t *src, int size)
{ {
z_stream zs; z_stream zs;
...@@ -198,8 +196,8 @@ static int flashsv_decode_block(AVCodecContext *avctx, AVPacket *avpkt, ...@@ -198,8 +196,8 @@ static int flashsv_decode_block(AVCodecContext *avctx, AVPacket *avpkt,
} }
if (s->is_keyframe) { if (s->is_keyframe) {
s->blocks[blk_idx].pos = s->keyframedata + (get_bits_count(gb) / 8); s->blocks[blk_idx].pos = s->keyframedata + (get_bits_count(gb) / 8);
s->blocks[blk_idx].size = block_size; s->blocks[blk_idx].size = block_size;
} }
y_pos += s->diff_start; y_pos += s->diff_start;
...@@ -244,8 +242,8 @@ static int calc_deflate_block_size(int tmpblock_size) ...@@ -244,8 +242,8 @@ static int calc_deflate_block_size(int tmpblock_size)
static int flashsv_decode_frame(AVCodecContext *avctx, void *data, static int flashsv_decode_frame(AVCodecContext *avctx, void *data,
int *got_frame, AVPacket *avpkt) int *got_frame, AVPacket *avpkt)
{ {
int buf_size = avpkt->size; int buf_size = avpkt->size;
FlashSVContext *s = avctx->priv_data; FlashSVContext *s = avctx->priv_data;
int h_blocks, v_blocks, h_part, v_part, i, j, ret; int h_blocks, v_blocks, h_part, v_part, i, j, ret;
GetBitContext gb; GetBitContext gb;
int last_blockwidth = s->block_width; int last_blockwidth = s->block_width;
...@@ -260,10 +258,10 @@ static int flashsv_decode_frame(AVCodecContext *avctx, void *data, ...@@ -260,10 +258,10 @@ static int flashsv_decode_frame(AVCodecContext *avctx, void *data,
init_get_bits(&gb, avpkt->data, buf_size * 8); init_get_bits(&gb, avpkt->data, buf_size * 8);
/* start to parse the bitstream */ /* start to parse the bitstream */
s->block_width = 16 * (get_bits(&gb, 4) + 1); s->block_width = 16 * (get_bits(&gb, 4) + 1);
s->image_width = get_bits(&gb, 12); s->image_width = get_bits(&gb, 12);
s->block_height = 16 * (get_bits(&gb, 4) + 1); s->block_height = 16 * (get_bits(&gb, 4) + 1);
s->image_height = get_bits(&gb, 12); s->image_height = get_bits(&gb, 12);
if ( last_blockwidth != s->block_width if ( last_blockwidth != s->block_width
|| last_blockheight!= s->block_height) || last_blockheight!= s->block_height)
...@@ -294,18 +292,22 @@ static int flashsv_decode_frame(AVCodecContext *avctx, void *data, ...@@ -294,18 +292,22 @@ static int flashsv_decode_frame(AVCodecContext *avctx, void *data,
s->tmpblock = av_realloc(s->tmpblock, tmpblock_size); s->tmpblock = av_realloc(s->tmpblock, tmpblock_size);
if (!s->tmpblock) { if (!s->tmpblock) {
av_log(avctx, AV_LOG_ERROR, "Can't allocate decompression buffer.\n"); av_log(avctx, AV_LOG_ERROR,
"Cannot allocate decompression buffer.\n");
return AVERROR(ENOMEM); return AVERROR(ENOMEM);
} }
if (s->ver == 2) { if (s->ver == 2) {
s->deflate_block_size = calc_deflate_block_size(tmpblock_size); s->deflate_block_size = calc_deflate_block_size(tmpblock_size);
if (s->deflate_block_size <= 0) { if (s->deflate_block_size <= 0) {
av_log(avctx, AV_LOG_ERROR, "Can't determine deflate buffer size.\n"); av_log(avctx, AV_LOG_ERROR,
"Cannot determine deflate buffer size.\n");
return -1; return -1;
} }
s->deflate_block = av_realloc(s->deflate_block, s->deflate_block_size); s->deflate_block = av_realloc(s->deflate_block,
s->deflate_block_size);
if (!s->deflate_block) { if (!s->deflate_block) {
av_log(avctx, AV_LOG_ERROR, "Can't allocate deflate buffer.\n"); av_log(avctx, AV_LOG_ERROR,
"Cannot allocate deflate buffer.\n");
return AVERROR(ENOMEM); return AVERROR(ENOMEM);
} }
} }
...@@ -333,8 +335,8 @@ static int flashsv_decode_frame(AVCodecContext *avctx, void *data, ...@@ -333,8 +335,8 @@ static int flashsv_decode_frame(AVCodecContext *avctx, void *data,
memcpy(s->keyframedata, avpkt->data, avpkt->size); memcpy(s->keyframedata, avpkt->data, avpkt->size);
} }
if(s->ver == 2 && !s->blocks) if(s->ver == 2 && !s->blocks)
s->blocks = av_mallocz((v_blocks + !!v_part) * (h_blocks + !!h_part) s->blocks = av_mallocz((v_blocks + !!v_part) * (h_blocks + !!h_part) *
* sizeof(s->blocks[0])); sizeof(s->blocks[0]));
av_dlog(avctx, "image: %dx%d block: %dx%d num: %dx%d part: %dx%d\n", av_dlog(avctx, "image: %dx%d block: %dx%d num: %dx%d part: %dx%d\n",
s->image_width, s->image_height, s->block_width, s->block_height, s->image_width, s->image_height, s->block_width, s->block_height,
...@@ -378,14 +380,15 @@ static int flashsv_decode_frame(AVCodecContext *avctx, void *data, ...@@ -378,14 +380,15 @@ static int flashsv_decode_frame(AVCodecContext *avctx, void *data,
if (s->color_depth != 0 && s->color_depth != 2) { if (s->color_depth != 0 && s->color_depth != 2) {
av_log(avctx, AV_LOG_ERROR, av_log(avctx, AV_LOG_ERROR,
"%dx%d invalid color depth %d\n", i, j, s->color_depth); "%dx%d invalid color depth %d\n",
i, j, s->color_depth);
return AVERROR_INVALIDDATA; return AVERROR_INVALIDDATA;
} }
if (has_diff) { if (has_diff) {
if (!s->keyframe) { if (!s->keyframe) {
av_log(avctx, AV_LOG_ERROR, av_log(avctx, AV_LOG_ERROR,
"inter frame without keyframe\n"); "Inter frame without keyframe\n");
return AVERROR_INVALIDDATA; return AVERROR_INVALIDDATA;
} }
s->diff_start = get_bits(&gb, 8); s->diff_start = get_bits(&gb, 8);
...@@ -408,14 +411,15 @@ static int flashsv_decode_frame(AVCodecContext *avctx, void *data, ...@@ -408,14 +411,15 @@ static int flashsv_decode_frame(AVCodecContext *avctx, void *data,
if (s->zlibprime_curr) { if (s->zlibprime_curr) {
int col = get_bits(&gb, 8); int col = get_bits(&gb, 8);
int row = get_bits(&gb, 8); int row = get_bits(&gb, 8);
av_log(avctx, AV_LOG_DEBUG, "%dx%d zlibprime_curr %dx%d\n", i, j, col, row); av_log(avctx, AV_LOG_DEBUG, "%dx%d zlibprime_curr %dx%d\n",
i, j, col, row);
size -= 2; size -= 2;
avpriv_request_sample(avctx, "zlibprime_curr"); avpriv_request_sample(avctx, "zlibprime_curr");
return AVERROR_PATCHWELCOME; return AVERROR_PATCHWELCOME;
} }
if (!s->blocks && (s->zlibprime_curr || s->zlibprime_prev)) { if (!s->blocks && (s->zlibprime_curr || s->zlibprime_prev)) {
av_log(avctx, AV_LOG_ERROR, "no data available for zlib " av_log(avctx, AV_LOG_ERROR,
"priming\n"); "no data available for zlib priming\n");
return AVERROR_INVALIDDATA; return AVERROR_INVALIDDATA;
} }
size--; // account for flags byte size--; // account for flags byte
...@@ -451,7 +455,8 @@ static int flashsv_decode_frame(AVCodecContext *avctx, void *data, ...@@ -451,7 +455,8 @@ static int flashsv_decode_frame(AVCodecContext *avctx, void *data,
return AVERROR(ENOMEM); return AVERROR(ENOMEM);
} }
} }
memcpy(s->keyframe, s->frame.data[0], s->frame.linesize[0] * avctx->height); memcpy(s->keyframe, s->frame.data[0],
s->frame.linesize[0] * avctx->height);
} }
if ((ret = av_frame_ref(data, &s->frame)) < 0) if ((ret = av_frame_ref(data, &s->frame)) < 0)
...@@ -467,7 +472,6 @@ static int flashsv_decode_frame(AVCodecContext *avctx, void *data, ...@@ -467,7 +472,6 @@ static int flashsv_decode_frame(AVCodecContext *avctx, void *data,
return buf_size; return buf_size;
} }
static av_cold int flashsv_decode_end(AVCodecContext *avctx) static av_cold int flashsv_decode_end(AVCodecContext *avctx)
{ {
FlashSVContext *s = avctx->priv_data; FlashSVContext *s = avctx->priv_data;
...@@ -481,7 +485,6 @@ static av_cold int flashsv_decode_end(AVCodecContext *avctx) ...@@ -481,7 +485,6 @@ static av_cold int flashsv_decode_end(AVCodecContext *avctx)
return 0; return 0;
} }
#if CONFIG_FLASHSV_DECODER #if CONFIG_FLASHSV_DECODER
AVCodec ff_flashsv_decoder = { AVCodec ff_flashsv_decoder = {
.name = "flashsv", .name = "flashsv",
...@@ -493,7 +496,7 @@ AVCodec ff_flashsv_decoder = { ...@@ -493,7 +496,7 @@ AVCodec ff_flashsv_decoder = {
.close = flashsv_decode_end, .close = flashsv_decode_end,
.decode = flashsv_decode_frame, .decode = flashsv_decode_frame,
.capabilities = CODEC_CAP_DR1, .capabilities = CODEC_CAP_DR1,
.pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_BGR24, AV_PIX_FMT_NONE }, .pix_fmts = (const enum AVPixelFormat[]) { AV_PIX_FMT_BGR24, AV_PIX_FMT_NONE },
}; };
#endif /* CONFIG_FLASHSV_DECODER */ #endif /* CONFIG_FLASHSV_DECODER */
...@@ -556,6 +559,6 @@ AVCodec ff_flashsv2_decoder = { ...@@ -556,6 +559,6 @@ AVCodec ff_flashsv2_decoder = {
.close = flashsv2_decode_end, .close = flashsv2_decode_end,
.decode = flashsv_decode_frame, .decode = flashsv_decode_frame,
.capabilities = CODEC_CAP_DR1, .capabilities = CODEC_CAP_DR1,
.pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_BGR24, AV_PIX_FMT_NONE }, .pix_fmts = (const enum AVPixelFormat[]) { AV_PIX_FMT_BGR24, AV_PIX_FMT_NONE },
}; };
#endif /* CONFIG_FLASHSV2_DECODER */ #endif /* CONFIG_FLASHSV2_DECODER */
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