diff options
author | Luca Barbato <lu_zero@gentoo.org> | 2014-02-24 02:59:25 +0400 |
---|---|---|
committer | Reinhard Tartler <siretart@tauware.de> | 2014-03-02 20:42:38 +0400 |
commit | 437179e9c89e8b273cb79563838e0ec92f59a193 (patch) | |
tree | 8617d43a7bd5660a9ef95ef5f90a2fd9e780f43c /libavcodec/parser.c | |
parent | b76871d8700451172e3225f8484b07a93abc3b57 (diff) |
parser: K&R formatting cosmetics
Signed-off-by: Diego Biurrun <diego@biurrun.de>
(cherry picked from commit a1c699659d56b76c0bf399307f642c6fd6d28281)
Diffstat (limited to 'libavcodec/parser.c')
-rw-r--r-- | libavcodec/parser.c | 200 |
1 files changed, 105 insertions, 95 deletions
diff --git a/libavcodec/parser.c b/libavcodec/parser.c index e6743eb37c..c6ceeb6d2d 100644 --- a/libavcodec/parser.c +++ b/libavcodec/parser.c @@ -23,14 +23,18 @@ #include <stdint.h> #include <string.h> -#include "parser.h" #include "libavutil/mem.h" +#include "parser.h" + static AVCodecParser *av_first_parser = NULL; -AVCodecParser* av_parser_next(AVCodecParser *p){ - if(p) return p->next; - else return av_first_parser; +AVCodecParser *av_parser_next(AVCodecParser *p) +{ + if (p) + return p->next; + else + return av_first_parser; } void av_register_codec_parser(AVCodecParser *parser) @@ -45,10 +49,10 @@ AVCodecParserContext *av_parser_init(int codec_id) AVCodecParser *parser; int ret; - if(codec_id == AV_CODEC_ID_NONE) + if (codec_id == AV_CODEC_ID_NONE) return NULL; - for(parser = av_first_parser; parser != NULL; parser = parser->next) { + for (parser = av_first_parser; parser != NULL; parser = parser->next) { if (parser->codec_ids[0] == codec_id || parser->codec_ids[1] == codec_id || parser->codec_ids[2] == codec_id || @@ -57,7 +61,8 @@ AVCodecParserContext *av_parser_init(int codec_id) goto found; } return NULL; - found: + +found: s = av_mallocz(sizeof(AVCodecParserContext)); if (!s) return NULL; @@ -77,9 +82,9 @@ AVCodecParserContext *av_parser_init(int codec_id) return NULL; } } - s->fetch_timestamp=1; - s->pict_type = AV_PICTURE_TYPE_I; - s->key_frame = -1; + s->fetch_timestamp = 1; + s->pict_type = AV_PICTURE_TYPE_I; + s->key_frame = -1; s->convergence_duration = 0; s->dts_sync_point = INT_MIN; s->dts_ref_dts_delta = INT_MIN; @@ -87,71 +92,70 @@ AVCodecParserContext *av_parser_init(int codec_id) return s; } -void ff_fetch_timestamp(AVCodecParserContext *s, int off, int remove){ +void ff_fetch_timestamp(AVCodecParserContext *s, int off, int remove) +{ int i; - s->dts= s->pts= AV_NOPTS_VALUE; - s->pos= -1; - s->offset= 0; - for(i = 0; i < AV_PARSER_PTS_NB; i++) { - if ( s->cur_offset + off >= s->cur_frame_offset[i] - && (s->frame_offset < s->cur_frame_offset[i] || - (!s->frame_offset && !s->next_frame_offset)) // first field/frame - && s->cur_frame_end[i]) { - s->dts= s->cur_frame_dts[i]; - s->pts= s->cur_frame_pts[i]; - s->pos= s->cur_frame_pos[i]; + s->dts = + s->pts = AV_NOPTS_VALUE; + s->pos = -1; + s->offset = 0; + for (i = 0; i < AV_PARSER_PTS_NB; i++) { + if (s->cur_offset + off >= s->cur_frame_offset[i] && + (s->frame_offset < s->cur_frame_offset[i] || + (!s->frame_offset && !s->next_frame_offset)) && + s->cur_frame_end[i]) { + s->dts = s->cur_frame_dts[i]; + s->pts = s->cur_frame_pts[i]; + s->pos = s->cur_frame_pos[i]; s->offset = s->next_frame_offset - s->cur_frame_offset[i]; - if(remove) - s->cur_frame_offset[i]= INT64_MAX; - if(s->cur_offset + off < s->cur_frame_end[i]) + if (remove) + s->cur_frame_offset[i] = INT64_MAX; + if (s->cur_offset + off < s->cur_frame_end[i]) break; } } } -int av_parser_parse2(AVCodecParserContext *s, - AVCodecContext *avctx, +int av_parser_parse2(AVCodecParserContext *s, AVCodecContext *avctx, uint8_t **poutbuf, int *poutbuf_size, const uint8_t *buf, int buf_size, - int64_t pts, int64_t dts, - int64_t pos) + int64_t pts, int64_t dts, int64_t pos) { int index, i; uint8_t dummy_buf[FF_INPUT_BUFFER_PADDING_SIZE]; - if(!(s->flags & PARSER_FLAG_FETCHED_OFFSET)) { + if (!(s->flags & PARSER_FLAG_FETCHED_OFFSET)) { s->next_frame_offset = s->cur_offset = pos; - s->flags |= PARSER_FLAG_FETCHED_OFFSET; + s->flags |= PARSER_FLAG_FETCHED_OFFSET; } if (buf_size == 0) { /* padding is always necessary even if EOF, so we add it here */ memset(dummy_buf, 0, sizeof(dummy_buf)); buf = dummy_buf; - } else if (s->cur_offset + buf_size != - s->cur_frame_end[s->cur_frame_start_index]) { /* skip remainder packets */ + } else if (s->cur_offset + buf_size != s->cur_frame_end[s->cur_frame_start_index]) { /* skip remainder packets */ /* add a new packet descriptor */ - i = (s->cur_frame_start_index + 1) & (AV_PARSER_PTS_NB - 1); - s->cur_frame_start_index = i; - s->cur_frame_offset[i] = s->cur_offset; - s->cur_frame_end[i] = s->cur_offset + buf_size; - s->cur_frame_pts[i] = pts; - s->cur_frame_dts[i] = dts; - s->cur_frame_pos[i] = pos; + i = (s->cur_frame_start_index + 1) & (AV_PARSER_PTS_NB - 1); + s->cur_frame_start_index = i; + s->cur_frame_offset[i] = s->cur_offset; + s->cur_frame_end[i] = s->cur_offset + buf_size; + s->cur_frame_pts[i] = pts; + s->cur_frame_dts[i] = dts; + s->cur_frame_pos[i] = pos; } - if (s->fetch_timestamp){ - s->fetch_timestamp=0; - s->last_pts = s->pts; - s->last_dts = s->dts; - s->last_pos = s->pos; + if (s->fetch_timestamp) { + s->fetch_timestamp = 0; + s->last_pts = s->pts; + s->last_dts = s->dts; + s->last_pos = s->pos; ff_fetch_timestamp(s, 0, 0); } - /* WARNING: the returned index can be negative */ - index = s->parser->parser_parse(s, avctx, (const uint8_t **)poutbuf, poutbuf_size, buf, buf_size); + index = s->parser->parser_parse(s, avctx, (const uint8_t **) poutbuf, + poutbuf_size, buf, buf_size); /* update the file pointer */ if (*poutbuf_size) { /* fill the data for the current frame */ @@ -159,7 +163,7 @@ int av_parser_parse2(AVCodecParserContext *s, /* offset of the next frame */ s->next_frame_offset = s->cur_offset + index; - s->fetch_timestamp=1; + s->fetch_timestamp = 1; } if (index < 0) index = 0; @@ -167,30 +171,32 @@ int av_parser_parse2(AVCodecParserContext *s, return index; } -int av_parser_change(AVCodecParserContext *s, - AVCodecContext *avctx, +int av_parser_change(AVCodecParserContext *s, AVCodecContext *avctx, 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); - buf += i; + 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); + buf += i; buf_size -= i; } } /* cast to avoid warning about discarding qualifiers */ - *poutbuf= (uint8_t *) buf; - *poutbuf_size= buf_size; - if(avctx->extradata){ + *poutbuf = (uint8_t *) buf; + *poutbuf_size = buf_size; + if (avctx->extradata) { if ((keyframe && (avctx->flags2 & CODEC_FLAG2_LOCAL_HEADER))) { - int size= buf_size + avctx->extradata_size; - *poutbuf_size= size; - *poutbuf= av_malloc(size + FF_INPUT_BUFFER_PADDING_SIZE); + 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); + memcpy((*poutbuf) + avctx->extradata_size, buf, + buf_size + FF_INPUT_BUFFER_PADDING_SIZE); return 1; } } @@ -200,7 +206,7 @@ int av_parser_change(AVCodecParserContext *s, void av_parser_close(AVCodecParserContext *s) { - if(s){ + if (s) { if (s->parser->parser_close) s->parser->parser_close(s); av_free(s->priv_data); @@ -208,31 +214,33 @@ void av_parser_close(AVCodecParserContext *s) } } -int ff_combine_frame(ParseContext *pc, int next, const uint8_t **buf, int *buf_size) +int ff_combine_frame(ParseContext *pc, int next, + const uint8_t **buf, int *buf_size) { - if(pc->overread){ + if (pc->overread) { av_dlog(NULL, "overread %d, state:%X next:%d index:%d o_index:%d\n", pc->overread, pc->state, next, pc->index, pc->overread_index); - av_dlog(NULL, "%X %X %X %X\n", (*buf)[0], (*buf)[1], (*buf)[2], (*buf)[3]); + av_dlog(NULL, "%X %X %X %X\n", + (*buf)[0], (*buf)[1], (*buf)[2], (*buf)[3]); } /* Copy overread bytes from last frame into buffer. */ - for(; pc->overread>0; pc->overread--){ - pc->buffer[pc->index++]= pc->buffer[pc->overread_index++]; - } + for (; pc->overread > 0; pc->overread--) + pc->buffer[pc->index++] = pc->buffer[pc->overread_index++]; /* flush remaining if EOF */ - if(!*buf_size && next == END_NOT_FOUND){ - next= 0; - } + if (!*buf_size && next == END_NOT_FOUND) + next = 0; - pc->last_index= pc->index; + pc->last_index = pc->index; /* copy into buffer end return */ - if(next == END_NOT_FOUND){ - void* new_buffer = av_fast_realloc(pc->buffer, &pc->buffer_size, (*buf_size) + pc->index + FF_INPUT_BUFFER_PADDING_SIZE); + if (next == END_NOT_FOUND) { + void *new_buffer = av_fast_realloc(pc->buffer, &pc->buffer_size, + (*buf_size) + pc->index + + FF_INPUT_BUFFER_PADDING_SIZE); - if(!new_buffer) + if (!new_buffer) return AVERROR(ENOMEM); pc->buffer = new_buffer; memcpy(&pc->buffer[pc->index], *buf, *buf_size); @@ -240,34 +248,37 @@ int ff_combine_frame(ParseContext *pc, int next, const uint8_t **buf, int *buf_s return -1; } - *buf_size= - pc->overread_index= pc->index + next; + *buf_size = + pc->overread_index = pc->index + next; /* append to buffer */ - if(pc->index){ - void* new_buffer = av_fast_realloc(pc->buffer, &pc->buffer_size, next + pc->index + FF_INPUT_BUFFER_PADDING_SIZE); + if (pc->index) { + void *new_buffer = av_fast_realloc(pc->buffer, &pc->buffer_size, + next + pc->index + + FF_INPUT_BUFFER_PADDING_SIZE); - if(!new_buffer) + if (!new_buffer) return AVERROR(ENOMEM); pc->buffer = new_buffer; if (next > -FF_INPUT_BUFFER_PADDING_SIZE) memcpy(&pc->buffer[pc->index], *buf, next + FF_INPUT_BUFFER_PADDING_SIZE); pc->index = 0; - *buf= pc->buffer; + *buf = pc->buffer; } /* store overread bytes */ - for(;next < 0; next++){ - pc->state = (pc->state<<8) | pc->buffer[pc->last_index + next]; - pc->state64 = (pc->state64<<8) | pc->buffer[pc->last_index + next]; + for (; next < 0; next++) { + pc->state = (pc->state << 8) | pc->buffer[pc->last_index + next]; + pc->state64 = (pc->state64 << 8) | pc->buffer[pc->last_index + next]; pc->overread++; } - if(pc->overread){ + if (pc->overread) { av_dlog(NULL, "overread %d, state:%X next:%d index:%d o_index:%d\n", pc->overread, pc->state, next, pc->index, pc->overread_index); - av_dlog(NULL, "%X %X %X %X\n", (*buf)[0], (*buf)[1],(*buf)[2],(*buf)[3]); + av_dlog(NULL, "%X %X %X %X\n", + (*buf)[0], (*buf)[1], (*buf)[2], (*buf)[3]); } return 0; @@ -280,16 +291,15 @@ void ff_parse_close(AVCodecParserContext *s) av_freep(&pc->buffer); } -int ff_mpeg4video_split(AVCodecContext *avctx, - const uint8_t *buf, int buf_size) +int ff_mpeg4video_split(AVCodecContext *avctx, const uint8_t *buf, int buf_size) { int i; - uint32_t state= -1; + uint32_t state = -1; - for(i=0; i<buf_size; i++){ - state= (state<<8) | buf[i]; - if(state == 0x1B3 || state == 0x1B6) - return i-3; + for (i = 0; i < buf_size; i++) { + state = (state << 8) | buf[i]; + if (state == 0x1B3 || state == 0x1B6) + return i - 3; } return 0; } |