diff options
author | Michael Niedermayer | 2012-01-28 04:23:26 +0100 |
---|---|---|
committer | Michael Niedermayer | 2012-01-28 07:53:34 +0100 |
commit | e37f161e66e042d6c2c7470c4d9881df9427fc4a (patch) | |
tree | 6400fd6453f0525a65724937532d5baa33deead3 /libavcodec/8bps.c | |
parent | f21b6159cf3110a5f018d6addf7382840d427199 (diff) | |
parent | e771e6dd63e837220aa5d959486546d2be972e83 (diff) |
Merge remote-tracking branch 'qatar/master'
* qatar/master: (71 commits)
movenc: Allow writing to a non-seekable output if using empty moov
movenc: Support adding isml (smooth streaming live) metadata
libavcodec: Don't crash in avcodec_encode_audio if time_base isn't set
sunrast: Document the different Sun Raster file format types.
sunrast: Add a check for experimental type.
libspeexenc: use AVSampleFormat instead of deprecated/removed SampleFormat
lavf: remove disabled FF_API_SET_PTS_INFO cruft
lavf: remove disabled FF_API_OLD_INTERRUPT_CB cruft
lavf: remove disabled FF_API_REORDER_PRIVATE cruft
lavf: remove disabled FF_API_SEEK_PUBLIC cruft
lavf: remove disabled FF_API_STREAM_COPY cruft
lavf: remove disabled FF_API_PRELOAD cruft
lavf: remove disabled FF_API_NEW_STREAM cruft
lavf: remove disabled FF_API_RTSP_URL_OPTIONS cruft
lavf: remove disabled FF_API_MUXRATE cruft
lavf: remove disabled FF_API_FILESIZE cruft
lavf: remove disabled FF_API_TIMESTAMP cruft
lavf: remove disabled FF_API_LOOP_OUTPUT cruft
lavf: remove disabled FF_API_LOOP_INPUT cruft
lavf: remove disabled FF_API_AVSTREAM_QUALITY cruft
...
Conflicts:
doc/APIchanges
libavcodec/8bps.c
libavcodec/avcodec.h
libavcodec/libx264.c
libavcodec/mjpegbdec.c
libavcodec/options.c
libavcodec/sunrast.c
libavcodec/utils.c
libavcodec/version.h
libavcodec/x86/h264_deblock.asm
libavdevice/libdc1394.c
libavdevice/v4l2.c
libavformat/avformat.h
libavformat/avio.c
libavformat/avio.h
libavformat/aviobuf.c
libavformat/dv.c
libavformat/mov.c
libavformat/utils.c
libavformat/version.h
libavformat/wtv.c
libavutil/Makefile
libavutil/file.c
libswscale/x86/input.asm
libswscale/x86/swscale_mmx.c
libswscale/x86/swscale_template.c
tests/ref/lavf/ffm
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavcodec/8bps.c')
-rw-r--r-- | libavcodec/8bps.c | 251 |
1 files changed, 127 insertions, 124 deletions
diff --git a/libavcodec/8bps.c b/libavcodec/8bps.c index 9207020c9c..7951bd8db0 100644 --- a/libavcodec/8bps.c +++ b/libavcodec/8bps.c @@ -38,20 +38,20 @@ #include "avcodec.h" -static const enum PixelFormat pixfmt_rgb24[] = {PIX_FMT_BGR24, PIX_FMT_RGB32, PIX_FMT_NONE}; +static const enum PixelFormat pixfmt_rgb24[] = { + PIX_FMT_BGR24, PIX_FMT_RGB32, PIX_FMT_NONE }; /* * Decoder context */ typedef struct EightBpsContext { + AVCodecContext *avctx; + AVFrame pic; - AVCodecContext *avctx; - AVFrame pic; + unsigned char planes; + unsigned char planemap[4]; - unsigned char planes; - unsigned char planemap[4]; - - uint32_t pal[256]; + uint32_t pal[256]; } EightBpsContext; @@ -60,87 +60,90 @@ typedef struct EightBpsContext { * Decode a frame * */ -static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPacket *avpkt) +static int decode_frame(AVCodecContext *avctx, void *data, + int *data_size, AVPacket *avpkt) { - const uint8_t *buf = avpkt->data; - int buf_size = avpkt->size; - EightBpsContext * const c = avctx->priv_data; - const unsigned char *encoded = buf; - unsigned char *pixptr, *pixptr_end; - unsigned int height = avctx->height; // Real image height - unsigned int dlen, p, row; - const unsigned char *lp, *dp; - unsigned char count; - unsigned int planes = c->planes; - unsigned char *planemap = c->planemap; - - if(c->pic.data[0]) - avctx->release_buffer(avctx, &c->pic); - - c->pic.reference = 0; - c->pic.buffer_hints = FF_BUFFER_HINTS_VALID; - if(avctx->get_buffer(avctx, &c->pic) < 0){ - av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n"); - return -1; - } - - /* Set data pointer after line lengths */ - dp = encoded + planes * (height << 1); - - for (p = 0; p < planes; p++) { - /* Lines length pointer for this plane */ - lp = encoded + p * (height << 1); - - /* Decode a plane */ - for(row = 0; row < height; row++) { - pixptr = c->pic.data[0] + row * c->pic.linesize[0] + planemap[p]; - pixptr_end = pixptr + c->pic.linesize[0]; - dlen = av_be2ne16(*(const unsigned short *)(lp+row*2)); - /* Decode a row of this plane */ - while(dlen > 0) { - if(dp + 1 >= buf+buf_size) return -1; - if ((count = *dp++) <= 127) { - count++; - dlen -= count + 1; - if (pixptr + count * planes > pixptr_end) - break; - if(dp + count > buf+buf_size) return -1; - while(count--) { - *pixptr = *dp++; - pixptr += planes; - } - } else { - count = 257 - count; - if (pixptr + count * planes > pixptr_end) - break; - while(count--) { - *pixptr = *dp; - pixptr += planes; - } - dp++; - dlen -= 2; - } - } + const uint8_t *buf = avpkt->data; + int buf_size = avpkt->size; + EightBpsContext * const c = avctx->priv_data; + const unsigned char *encoded = buf; + unsigned char *pixptr, *pixptr_end; + unsigned int height = avctx->height; // Real image height + unsigned int dlen, p, row; + const unsigned char *lp, *dp; + unsigned char count; + unsigned int planes = c->planes; + unsigned char *planemap = c->planemap; + + if (c->pic.data[0]) + avctx->release_buffer(avctx, &c->pic); + + c->pic.reference = 0; + c->pic.buffer_hints = FF_BUFFER_HINTS_VALID; + if (avctx->get_buffer(avctx, &c->pic) < 0){ + av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n"); + return -1; + } + + /* Set data pointer after line lengths */ + dp = encoded + planes * (height << 1); + + for (p = 0; p < planes; p++) { + /* Lines length pointer for this plane */ + lp = encoded + p * (height << 1); + + /* Decode a plane */ + for (row = 0; row < height; row++) { + pixptr = c->pic.data[0] + row * c->pic.linesize[0] + planemap[p]; + pixptr_end = pixptr + c->pic.linesize[0]; + dlen = av_be2ne16(*(const unsigned short *)(lp + row * 2)); + /* Decode a row of this plane */ + while (dlen > 0) { + if (dp + 1 >= buf + buf_size) + return -1; + if ((count = *dp++) <= 127) { + count++; + dlen -= count + 1; + if (pixptr + count * planes > pixptr_end) + break; + if (dp + count > buf + buf_size) + return -1; + while (count--) { + *pixptr = *dp++; + pixptr += planes; + } + } else { + count = 257 - count; + if (pixptr + count * planes > pixptr_end) + break; + while (count--) { + *pixptr = *dp; + pixptr += planes; + } + dp++; + dlen -= 2; } + } } - - if (avctx->bits_per_coded_sample <= 8) { - const uint8_t *pal = av_packet_get_side_data(avpkt, - AV_PKT_DATA_PALETTE, - NULL); - if (pal) { - c->pic.palette_has_changed = 1; - memcpy(c->pal, pal, AVPALETTE_SIZE); - } - - memcpy (c->pic.data[1], c->pal, AVPALETTE_SIZE); + } + + if (avctx->bits_per_coded_sample <= 8) { + const uint8_t *pal = av_packet_get_side_data(avpkt, + AV_PKT_DATA_PALETTE, + NULL); + if (pal) { + c->pic.palette_has_changed = 1; + memcpy(c->pal, pal, AVPALETTE_SIZE); } - *data_size = sizeof(AVFrame); - *(AVFrame*)data = c->pic; + memcpy (c->pic.data[1], c->pal, AVPALETTE_SIZE); + } + + *data_size = sizeof(AVFrame); + *(AVFrame*)data = c->pic; - /* always report that the buffer was completely consumed */ - return buf_size; + /* always report that the buffer was completely consumed */ + return buf_size; } @@ -151,47 +154,47 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, AVPac */ static av_cold int decode_init(AVCodecContext *avctx) { - EightBpsContext * const c = avctx->priv_data; - - c->avctx = avctx; - - avcodec_get_frame_defaults(&c->pic); - c->pic.data[0] = NULL; - - switch (avctx->bits_per_coded_sample) { - case 8: - avctx->pix_fmt = PIX_FMT_PAL8; - c->planes = 1; - c->planemap[0] = 0; // 1st plane is palette indexes - break; - case 24: - avctx->pix_fmt = avctx->get_format(avctx, pixfmt_rgb24); - c->planes = 3; - c->planemap[0] = 2; // 1st plane is red - c->planemap[1] = 1; // 2nd plane is green - c->planemap[2] = 0; // 3rd plane is blue - break; - case 32: - avctx->pix_fmt = PIX_FMT_RGB32; - c->planes = 4; + EightBpsContext * const c = avctx->priv_data; + + c->avctx = avctx; + c->pic.data[0] = NULL; + + avcodec_get_frame_defaults(&c->pic); + switch (avctx->bits_per_coded_sample) { + case 8: + avctx->pix_fmt = PIX_FMT_PAL8; + c->planes = 1; + c->planemap[0] = 0; // 1st plane is palette indexes + break; + case 24: + avctx->pix_fmt = avctx->get_format(avctx, pixfmt_rgb24); + c->planes = 3; + c->planemap[0] = 2; // 1st plane is red + c->planemap[1] = 1; // 2nd plane is green + c->planemap[2] = 0; // 3rd plane is blue + break; + case 32: + avctx->pix_fmt = PIX_FMT_RGB32; + c->planes = 4; #if HAVE_BIGENDIAN - c->planemap[0] = 1; // 1st plane is red - c->planemap[1] = 2; // 2nd plane is green - c->planemap[2] = 3; // 3rd plane is blue - c->planemap[3] = 0; // 4th plane is alpha + c->planemap[0] = 1; // 1st plane is red + c->planemap[1] = 2; // 2nd plane is green + c->planemap[2] = 3; // 3rd plane is blue + c->planemap[3] = 0; // 4th plane is alpha #else - c->planemap[0] = 2; // 1st plane is red - c->planemap[1] = 1; // 2nd plane is green - c->planemap[2] = 0; // 3rd plane is blue - c->planemap[3] = 3; // 4th plane is alpha + c->planemap[0] = 2; // 1st plane is red + c->planemap[1] = 1; // 2nd plane is green + c->planemap[2] = 0; // 3rd plane is blue + c->planemap[3] = 3; // 4th plane is alpha #endif - break; - default: - av_log(avctx, AV_LOG_ERROR, "Error: Unsupported color depth: %u.\n", avctx->bits_per_coded_sample); - return -1; - } - - return 0; + break; + default: + av_log(avctx, AV_LOG_ERROR, "Error: Unsupported color depth: %u.\n", + avctx->bits_per_coded_sample); + return -1; + } + + return 0; } @@ -204,12 +207,12 @@ static av_cold int decode_init(AVCodecContext *avctx) */ static av_cold int decode_end(AVCodecContext *avctx) { - EightBpsContext * const c = avctx->priv_data; + EightBpsContext * const c = avctx->priv_data; - if (c->pic.data[0]) - avctx->release_buffer(avctx, &c->pic); + if (c->pic.data[0]) + avctx->release_buffer(avctx, &c->pic); - return 0; + return 0; } |