diff options
author | Aurelien Jacobs <aurel@gnuage.org> | 2007-07-09 20:26:11 +0400 |
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committer | Aurelien Jacobs <aurel@gnuage.org> | 2007-07-09 20:26:11 +0400 |
commit | 3a763f0f0b8e18ed3999400e063ca425333c77fe (patch) | |
tree | fe99222c767581c7a5bc521cac58615e3fe737cd /libavcodec/raw.c | |
parent | 0d336e44db6ea55a83fae82f955976bfbc6e0565 (diff) |
split rawvideo encoder and decoder in their own files
Originally committed as revision 9560 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/raw.c')
-rw-r--r-- | libavcodec/raw.c | 166 |
1 files changed, 3 insertions, 163 deletions
diff --git a/libavcodec/raw.c b/libavcodec/raw.c index 7e681dccac..5f0a1bbe90 100644 --- a/libavcodec/raw.c +++ b/libavcodec/raw.c @@ -25,19 +25,9 @@ */ #include "avcodec.h" +#include "raw.h" -typedef struct RawVideoContext { - unsigned char * buffer; /* block of memory for holding one frame */ - int length; /* number of bytes in buffer */ - AVFrame pic; ///< AVCodecContext.coded_frame -} RawVideoContext; - -typedef struct PixelFormatTag { - int pix_fmt; - unsigned int fourcc; -} PixelFormatTag; - -static const PixelFormatTag pixelFormatTags[] = { +const PixelFormatTag ff_raw_pixelFormatTags[] = { { PIX_FMT_YUV420P, MKTAG('I', '4', '2', '0') }, /* Planar formats */ { PIX_FMT_YUV420P, MKTAG('I', 'Y', 'U', 'V') }, { PIX_FMT_YUV420P, MKTAG('Y', 'V', '1', '2') }, @@ -64,38 +54,9 @@ static const PixelFormatTag pixelFormatTags[] = { { -1, 0 }, }; -static const PixelFormatTag pixelFormatBpsAVI[] = { - { PIX_FMT_PAL8, 8 }, - { PIX_FMT_RGB555, 15 }, - { PIX_FMT_RGB555, 16 }, - { PIX_FMT_BGR24, 24 }, - { PIX_FMT_RGB32, 32 }, - { -1, 0 }, -}; - -static const PixelFormatTag pixelFormatBpsMOV[] = { - /* FIXME fix swscaler to support those */ - /* http://developer.apple.com/documentation/QuickTime/QTFF/QTFFChap3/chapter_4_section_2.html */ - { PIX_FMT_PAL8, 8 }, - { PIX_FMT_BGR555, 16 }, - { PIX_FMT_RGB24, 24 }, - { PIX_FMT_BGR32_1, 32 }, - { -1, 0 }, -}; - -static int findPixelFormat(const PixelFormatTag *tags, unsigned int fourcc) -{ - while (tags->pix_fmt >= 0) { - if (tags->fourcc == fourcc) - return tags->pix_fmt; - tags++; - } - return PIX_FMT_YUV420P; -} - unsigned int avcodec_pix_fmt_to_codec_tag(enum PixelFormat fmt) { - const PixelFormatTag * tags = pixelFormatTags; + const PixelFormatTag * tags = ff_raw_pixelFormatTags; while (tags->pix_fmt >= 0) { if (tags->pix_fmt == fmt) return tags->fourcc; @@ -103,124 +64,3 @@ unsigned int avcodec_pix_fmt_to_codec_tag(enum PixelFormat fmt) } return 0; } - -/* RAW Decoder Implementation */ - -static int raw_init_decoder(AVCodecContext *avctx) -{ - RawVideoContext *context = avctx->priv_data; - - if (avctx->codec_tag == MKTAG('r','a','w',' ')) - avctx->pix_fmt = findPixelFormat(pixelFormatBpsMOV, avctx->bits_per_sample); - else if (avctx->codec_tag) - avctx->pix_fmt = findPixelFormat(pixelFormatTags, avctx->codec_tag); - else if (avctx->bits_per_sample) - avctx->pix_fmt = findPixelFormat(pixelFormatBpsAVI, avctx->bits_per_sample); - - context->length = avpicture_get_size(avctx->pix_fmt, avctx->width, avctx->height); - context->buffer = av_malloc(context->length); - context->pic.pict_type = FF_I_TYPE; - context->pic.key_frame = 1; - - avctx->coded_frame= &context->pic; - - if (!context->buffer) - return -1; - - return 0; -} - -static void flip(AVCodecContext *avctx, AVPicture * picture){ - if(!avctx->codec_tag && avctx->bits_per_sample && picture->linesize[2]==0){ - picture->data[0] += picture->linesize[0] * (avctx->height-1); - picture->linesize[0] *= -1; - } -} - -static int raw_decode(AVCodecContext *avctx, - void *data, int *data_size, - uint8_t *buf, int buf_size) -{ - RawVideoContext *context = avctx->priv_data; - - AVFrame * frame = (AVFrame *) data; - AVPicture * picture = (AVPicture *) data; - - frame->interlaced_frame = avctx->coded_frame->interlaced_frame; - frame->top_field_first = avctx->coded_frame->top_field_first; - - if(buf_size < context->length - (avctx->pix_fmt==PIX_FMT_PAL8 ? 256*4 : 0)) - return -1; - - avpicture_fill(picture, buf, avctx->pix_fmt, avctx->width, avctx->height); - if(avctx->pix_fmt==PIX_FMT_PAL8 && buf_size < context->length){ - frame->data[1]= context->buffer; - } - if (avctx->palctrl && avctx->palctrl->palette_changed) { - memcpy(frame->data[1], avctx->palctrl->palette, AVPALETTE_SIZE); - avctx->palctrl->palette_changed = 0; - } - - flip(avctx, picture); - - if (avctx->codec_tag == MKTAG('Y', 'V', '1', '2')) - { - // swap fields - unsigned char *tmp = picture->data[1]; - picture->data[1] = picture->data[2]; - picture->data[2] = tmp; - } - - *data_size = sizeof(AVPicture); - return buf_size; -} - -static int raw_close_decoder(AVCodecContext *avctx) -{ - RawVideoContext *context = avctx->priv_data; - - av_freep(&context->buffer); - return 0; -} - -/* RAW Encoder Implementation */ -#ifdef CONFIG_RAWVIDEO_ENCODER -static int raw_init_encoder(AVCodecContext *avctx) -{ - avctx->coded_frame = (AVFrame *)avctx->priv_data; - avctx->coded_frame->pict_type = FF_I_TYPE; - avctx->coded_frame->key_frame = 1; - if(!avctx->codec_tag) - avctx->codec_tag = avcodec_pix_fmt_to_codec_tag(avctx->pix_fmt); - return 0; -} - -static int raw_encode(AVCodecContext *avctx, - unsigned char *frame, int buf_size, void *data) -{ - return avpicture_layout((AVPicture *)data, avctx->pix_fmt, avctx->width, - avctx->height, frame, buf_size); -} - -AVCodec rawvideo_encoder = { - "rawvideo", - CODEC_TYPE_VIDEO, - CODEC_ID_RAWVIDEO, - sizeof(AVFrame), - raw_init_encoder, - raw_encode, -}; -#endif // CONFIG_RAWVIDEO_ENCODER - -#ifdef CONFIG_RAWVIDEO_DECODER -AVCodec rawvideo_decoder = { - "rawvideo", - CODEC_TYPE_VIDEO, - CODEC_ID_RAWVIDEO, - sizeof(RawVideoContext), - raw_init_decoder, - NULL, - raw_close_decoder, - raw_decode, -}; -#endif // CONFIG_RAWVIDEO_DECODER |