diff options
Diffstat (limited to 'libavcodec/parser.c')
| -rw-r--r-- | libavcodec/parser.c | 68 |
1 files changed, 34 insertions, 34 deletions
diff --git a/libavcodec/parser.c b/libavcodec/parser.c index 06cb7d1770..99756dd97a 100644 --- a/libavcodec/parser.c +++ b/libavcodec/parser.c @@ -34,7 +34,7 @@ AVCodecParserContext *av_parser_init(int codec_id) AVCodecParserContext *s; AVCodecParser *parser; int ret; - + if(codec_id == CODEC_ID_NONE) return NULL; @@ -71,15 +71,15 @@ AVCodecParserContext *av_parser_init(int codec_id) /* NOTE: buf_size == 0 is used to signal EOF so that the last frame can be returned if necessary */ -int av_parser_parse(AVCodecParserContext *s, +int av_parser_parse(AVCodecParserContext *s, AVCodecContext *avctx, - uint8_t **poutbuf, int *poutbuf_size, + uint8_t **poutbuf, int *poutbuf_size, const uint8_t *buf, int buf_size, int64_t pts, int64_t dts) { int index, i, k; uint8_t dummy_buf[FF_INPUT_BUFFER_PADDING_SIZE]; - + if (buf_size == 0) { /* padding is always necessary even if EOF, so we add it here */ memset(dummy_buf, 0, sizeof(dummy_buf)); @@ -111,7 +111,7 @@ int av_parser_parse(AVCodecParserContext *s, s->frame_offset = s->last_frame_offset; s->pts = s->last_pts; s->dts = s->last_dts; - + /* offset of the next frame */ s->last_frame_offset = s->cur_offset + index; /* find the packet in which the new frame starts. It @@ -129,7 +129,7 @@ int av_parser_parse(AVCodecParserContext *s, s->last_pts = s->cur_frame_pts[k]; s->last_dts = s->cur_frame_dts[k]; - + /* some parsers tell us the packet size even before seeing the first byte of the next packet, so the next pts/dts is in the next chunk */ if(index == buf_size){ @@ -148,9 +148,9 @@ int av_parser_parse(AVCodecParserContext *s, */ int av_parser_change(AVCodecParserContext *s, AVCodecContext *avctx, - uint8_t **poutbuf, int *poutbuf_size, + uint8_t **poutbuf, int *poutbuf_size, const uint8_t *buf, int buf_size, int keyframe){ - + if(s && s->parser->split){ if((avctx->flags & CODEC_FLAG_GLOBAL_HEADER) || (avctx->flags2 & CODEC_FLAG2_LOCAL_HEADER)){ int i= s->parser->split(avctx, buf, buf_size); @@ -169,7 +169,7 @@ int av_parser_change(AVCodecParserContext *s, int size= buf_size + avctx->extradata_size; *poutbuf_size= size; *poutbuf= av_malloc(size + FF_INPUT_BUFFER_PADDING_SIZE); - + memcpy(*poutbuf, avctx->extradata, avctx->extradata_size); memcpy((*poutbuf) + avctx->extradata_size, buf, buf_size + FF_INPUT_BUFFER_PADDING_SIZE); return 1; @@ -246,7 +246,7 @@ int ff_combine_frame(ParseContext *pc, int next, uint8_t **buf, int *buf_size) *buf_size= pc->overread_index= pc->index + next; - + /* append to buffer */ if(pc->index){ pc->buffer= av_fast_realloc(pc->buffer, &pc->buffer_size, next + pc->index + FF_INPUT_BUFFER_PADDING_SIZE); @@ -298,7 +298,7 @@ static int find_start_code(const uint8_t **pbuf_ptr, const uint8_t *buf_end) #define MPEG1_FRAME_RATE_BASE 1001 static const int frame_rate_tab[16] = { - 0, + 0, 24000, 24024, 25025, @@ -320,7 +320,7 @@ static const int frame_rate_tab[16] = { }; //FIXME move into mpeg12.c -static void mpegvideo_extract_headers(AVCodecParserContext *s, +static void mpegvideo_extract_headers(AVCodecParserContext *s, AVCodecContext *avctx, const uint8_t *buf, int buf_size) { @@ -386,7 +386,7 @@ static void mpegvideo_extract_headers(AVCodecParserContext *s, top_field_first = buf[3] & (1 << 7); repeat_first_field = buf[3] & (1 << 1); progressive_frame = buf[4] & (1 << 7); - + /* check if we must repeat the frame */ if (repeat_first_field) { if (pc->progressive_sequence) { @@ -398,8 +398,8 @@ static void mpegvideo_extract_headers(AVCodecParserContext *s, s->repeat_pict = 1; } } - - /* the packet only represents half a frame + + /* the packet only represents half a frame XXX,FIXME maybe find a different solution */ if(picture_structure != 3) s->repeat_pict = -1; @@ -413,7 +413,7 @@ static void mpegvideo_extract_headers(AVCodecParserContext *s, default: /* we stop parsing when we encounter a slice. It ensures that this function takes a negligible amount of time */ - if (start_code >= SLICE_MIN_START_CODE && + if (start_code >= SLICE_MIN_START_CODE && start_code <= SLICE_MAX_START_CODE) goto the_end; break; @@ -424,31 +424,31 @@ static void mpegvideo_extract_headers(AVCodecParserContext *s, static int mpegvideo_parse(AVCodecParserContext *s, AVCodecContext *avctx, - uint8_t **poutbuf, int *poutbuf_size, + uint8_t **poutbuf, int *poutbuf_size, const uint8_t *buf, int buf_size) { ParseContext1 *pc1 = s->priv_data; ParseContext *pc= &pc1->pc; int next; - + if(s->flags & PARSER_FLAG_COMPLETE_FRAMES){ next= buf_size; }else{ next= ff_mpeg1_find_frame_end(pc, buf, buf_size); - + if (ff_combine_frame(pc, next, (uint8_t **)&buf, &buf_size) < 0) { *poutbuf = NULL; *poutbuf_size = 0; return buf_size; } - + } /* we have a full frame : we just parse the first few MPEG headers to have the full timing information. The time take by this function should be negligible for uncorrupted streams */ mpegvideo_extract_headers(s, avctx, buf, buf_size); #if 0 - printf("pict_type=%d frame_rate=%0.3f repeat_pict=%d\n", + printf("pict_type=%d frame_rate=%0.3f repeat_pict=%d\n", s->pict_type, (double)avctx->time_base.den / avctx->time_base.num, s->repeat_pict); #endif @@ -462,7 +462,7 @@ static int mpegvideo_split(AVCodecContext *avctx, { int i; uint32_t state= -1; - + for(i=0; i<buf_size; i++){ state= (state<<8) | buf[i]; if(state != 0x1B3 && state != 0x1B5 && state < 0x200 && state >= 0x100) @@ -490,7 +490,7 @@ static void parse1_close(AVCodecParserContext *s) /* used by parser */ /* XXX: make it use less memory */ -static int av_mpeg4_decode_header(AVCodecParserContext *s1, +static int av_mpeg4_decode_header(AVCodecParserContext *s1, AVCodecContext *avctx, const uint8_t *buf, int buf_size) { @@ -530,17 +530,17 @@ static int mpeg4video_parse_init(AVCodecParserContext *s) static int mpeg4video_parse(AVCodecParserContext *s, AVCodecContext *avctx, - uint8_t **poutbuf, int *poutbuf_size, + uint8_t **poutbuf, int *poutbuf_size, const uint8_t *buf, int buf_size) { ParseContext *pc = s->priv_data; int next; - + if(s->flags & PARSER_FLAG_COMPLETE_FRAMES){ next= buf_size; }else{ next= ff_mpeg4_find_frame_end(pc, buf, buf_size); - + if (ff_combine_frame(pc, next, (uint8_t **)&buf, &buf_size) < 0) { *poutbuf = NULL; *poutbuf_size = 0; @@ -559,7 +559,7 @@ static int mpeg4video_split(AVCodecContext *avctx, { int i; uint32_t state= -1; - + for(i=0; i<buf_size; i++){ state= (state<<8) | buf[i]; if(state == 0x1B3 || state == 0x1B6) @@ -596,7 +596,7 @@ static int mpegaudio_parse_init(AVCodecParserContext *s1) static int mpegaudio_parse(AVCodecParserContext *s1, AVCodecContext *avctx, - uint8_t **poutbuf, int *poutbuf_size, + uint8_t **poutbuf, int *poutbuf_size, const uint8_t *buf, int buf_size) { MpegAudioParseContext *s = s1->priv_data; @@ -654,7 +654,7 @@ static int mpegaudio_parse(AVCodecParserContext *s1, s->header= header; s->header_count++; s->frame_size = ret; - + #if 0 /* free format: prepare to compute frame size */ if (decode_header(s, header) == 1) { @@ -665,7 +665,7 @@ static int mpegaudio_parse(AVCodecParserContext *s1, if(s->header_count <= 0) avctx->sample_rate= sr; //FIXME ugly } - } else + } else #if 0 if (s->frame_size == -1) { /* free format : find next sync to compute frame size */ @@ -708,7 +708,7 @@ static int mpegaudio_parse(AVCodecParserContext *s1, s->free_format_frame_size -= padding * 4; else s->free_format_frame_size -= padding; - dprintf("free frame size=%d padding=%d\n", + dprintf("free frame size=%d padding=%d\n", s->free_format_frame_size, padding); decode_header(s, header1); goto next_data; @@ -720,7 +720,7 @@ static int mpegaudio_parse(AVCodecParserContext *s1, s->inbuf_ptr += len; buf_size -= len; } - } else + } else #endif if (len < s->frame_size) { if (s->frame_size > MPA_MAX_CODED_FRAME_SIZE) @@ -734,7 +734,7 @@ static int mpegaudio_parse(AVCodecParserContext *s1, buf_size -= len; } // next_data: - if (s->frame_size > 0 && + if (s->frame_size > 0 && (s->inbuf_ptr - s->inbuf) >= s->frame_size) { if(s->header_count > 0){ *poutbuf = s->inbuf; @@ -776,7 +776,7 @@ static int ac3_parse_init(AVCodecParserContext *s1) static int ac3_parse(AVCodecParserContext *s1, AVCodecContext *avctx, - uint8_t **poutbuf, int *poutbuf_size, + uint8_t **poutbuf, int *poutbuf_size, const uint8_t *buf, int buf_size) { AC3ParseContext *s = s1->priv_data; |