diff options
Diffstat (limited to 'contrib/ffmpeg/libavcodec/pnmenc.c')
| -rw-r--r-- | contrib/ffmpeg/libavcodec/pnmenc.c | 425 |
1 files changed, 0 insertions, 425 deletions
diff --git a/contrib/ffmpeg/libavcodec/pnmenc.c b/contrib/ffmpeg/libavcodec/pnmenc.c deleted file mode 100644 index c5061f2e7..000000000 --- a/contrib/ffmpeg/libavcodec/pnmenc.c +++ /dev/null @@ -1,425 +0,0 @@ -/* - * PNM image format - * Copyright (c) 2002, 2003 Fabrice Bellard. - * - * This file is part of FFmpeg. - * - * FFmpeg is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * FFmpeg is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ -#include "avcodec.h" -#include "bytestream.h" -#include "pnm.h" - - -static int common_init(AVCodecContext *avctx){ - PNMContext *s = avctx->priv_data; - - avcodec_get_frame_defaults((AVFrame*)&s->picture); - avctx->coded_frame= (AVFrame*)&s->picture; - - return 0; -} - -static int pnm_decode_frame(AVCodecContext *avctx, - void *data, int *data_size, - const uint8_t *buf, int buf_size) -{ - PNMContext * const s = avctx->priv_data; - AVFrame *picture = data; - AVFrame * const p= (AVFrame*)&s->picture; - int i, n, linesize, h, upgrade = 0; - unsigned char *ptr; - - s->bytestream_start= - s->bytestream= buf; - s->bytestream_end= buf + buf_size; - - if(ff_pnm_decode_header(avctx, s) < 0) - return -1; - - if(p->data[0]) - avctx->release_buffer(avctx, p); - - p->reference= 0; - if(avctx->get_buffer(avctx, p) < 0){ - av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n"); - return -1; - } - p->pict_type= FF_I_TYPE; - p->key_frame= 1; - - switch(avctx->pix_fmt) { - default: - return -1; - case PIX_FMT_RGB24: - n = avctx->width * 3; - goto do_read; - case PIX_FMT_GRAY8: - n = avctx->width; - if (s->maxval < 255) - upgrade = 1; - goto do_read; - case PIX_FMT_GRAY16BE: - case PIX_FMT_GRAY16LE: - n = avctx->width * 2; - if (s->maxval < 65535) - upgrade = 2; - goto do_read; - case PIX_FMT_MONOWHITE: - case PIX_FMT_MONOBLACK: - n = (avctx->width + 7) >> 3; - do_read: - ptr = p->data[0]; - linesize = p->linesize[0]; - if(s->bytestream + n*avctx->height > s->bytestream_end) - return -1; - for(i = 0; i < avctx->height; i++) { - if (!upgrade) - memcpy(ptr, s->bytestream, n); - else if (upgrade == 1) { - unsigned int j, f = (255*128 + s->maxval/2) / s->maxval; - for (j=0; j<n; j++) - ptr[j] = (s->bytestream[j] * f + 64) >> 7; - } else if (upgrade == 2) { - unsigned int j, v, f = (65535*32768 + s->maxval/2) / s->maxval; - for (j=0; j<n/2; j++) { - v = be2me_16(((uint16_t *)s->bytestream)[j]); - ((uint16_t *)ptr)[j] = (v * f + 16384) >> 15; - } - } - s->bytestream += n; - ptr += linesize; - } - break; - case PIX_FMT_YUV420P: - { - unsigned char *ptr1, *ptr2; - - n = avctx->width; - ptr = p->data[0]; - linesize = p->linesize[0]; - if(s->bytestream + n*avctx->height*3/2 > s->bytestream_end) - return -1; - for(i = 0; i < avctx->height; i++) { - memcpy(ptr, s->bytestream, n); - s->bytestream += n; - ptr += linesize; - } - ptr1 = p->data[1]; - ptr2 = p->data[2]; - n >>= 1; - h = avctx->height >> 1; - for(i = 0; i < h; i++) { - memcpy(ptr1, s->bytestream, n); - s->bytestream += n; - memcpy(ptr2, s->bytestream, n); - s->bytestream += n; - ptr1 += p->linesize[1]; - ptr2 += p->linesize[2]; - } - } - break; - case PIX_FMT_RGB32: - ptr = p->data[0]; - linesize = p->linesize[0]; - if(s->bytestream + avctx->width*avctx->height*4 > s->bytestream_end) - return -1; - for(i = 0; i < avctx->height; i++) { - int j, r, g, b, a; - - for(j = 0;j < avctx->width; j++) { - r = *s->bytestream++; - g = *s->bytestream++; - b = *s->bytestream++; - a = *s->bytestream++; - ((uint32_t *)ptr)[j] = (a << 24) | (r << 16) | (g << 8) | b; - } - ptr += linesize; - } - break; - } - *picture= *(AVFrame*)&s->picture; - *data_size = sizeof(AVPicture); - - return s->bytestream - s->bytestream_start; -} - -static int pnm_encode_frame(AVCodecContext *avctx, unsigned char *outbuf, int buf_size, void *data){ - PNMContext *s = avctx->priv_data; - AVFrame *pict = data; - AVFrame * const p= (AVFrame*)&s->picture; - int i, h, h1, c, n, linesize; - uint8_t *ptr, *ptr1, *ptr2; - - if(buf_size < avpicture_get_size(avctx->pix_fmt, avctx->width, avctx->height) + 200){ - av_log(avctx, AV_LOG_ERROR, "encoded frame too large\n"); - return -1; - } - - *p = *pict; - p->pict_type= FF_I_TYPE; - p->key_frame= 1; - - s->bytestream_start= - s->bytestream= outbuf; - s->bytestream_end= outbuf+buf_size; - - h = avctx->height; - h1 = h; - switch(avctx->pix_fmt) { - case PIX_FMT_MONOWHITE: - c = '4'; - n = (avctx->width + 7) >> 3; - break; - case PIX_FMT_GRAY8: - c = '5'; - n = avctx->width; - break; - case PIX_FMT_GRAY16BE: - c = '5'; - n = avctx->width * 2; - break; - case PIX_FMT_RGB24: - c = '6'; - n = avctx->width * 3; - break; - case PIX_FMT_YUV420P: - c = '5'; - n = avctx->width; - h1 = (h * 3) / 2; - break; - default: - return -1; - } - snprintf(s->bytestream, s->bytestream_end - s->bytestream, - "P%c\n%d %d\n", - c, avctx->width, h1); - s->bytestream += strlen(s->bytestream); - if (avctx->pix_fmt != PIX_FMT_MONOWHITE) { - snprintf(s->bytestream, s->bytestream_end - s->bytestream, - "%d\n", (avctx->pix_fmt != PIX_FMT_GRAY16BE) ? 255 : 65535); - s->bytestream += strlen(s->bytestream); - } - - ptr = p->data[0]; - linesize = p->linesize[0]; - for(i=0;i<h;i++) { - memcpy(s->bytestream, ptr, n); - s->bytestream += n; - ptr += linesize; - } - - if (avctx->pix_fmt == PIX_FMT_YUV420P) { - h >>= 1; - n >>= 1; - ptr1 = p->data[1]; - ptr2 = p->data[2]; - for(i=0;i<h;i++) { - memcpy(s->bytestream, ptr1, n); - s->bytestream += n; - memcpy(s->bytestream, ptr2, n); - s->bytestream += n; - ptr1 += p->linesize[1]; - ptr2 += p->linesize[2]; - } - } - return s->bytestream - s->bytestream_start; -} - -static int pam_encode_frame(AVCodecContext *avctx, unsigned char *outbuf, int buf_size, void *data){ - PNMContext *s = avctx->priv_data; - AVFrame *pict = data; - AVFrame * const p= (AVFrame*)&s->picture; - int i, h, w, n, linesize, depth, maxval; - const char *tuple_type; - uint8_t *ptr; - - if(buf_size < avpicture_get_size(avctx->pix_fmt, avctx->width, avctx->height) + 200){ - av_log(avctx, AV_LOG_ERROR, "encoded frame too large\n"); - return -1; - } - - *p = *pict; - p->pict_type= FF_I_TYPE; - p->key_frame= 1; - - s->bytestream_start= - s->bytestream= outbuf; - s->bytestream_end= outbuf+buf_size; - - h = avctx->height; - w = avctx->width; - switch(avctx->pix_fmt) { - case PIX_FMT_MONOWHITE: - n = (w + 7) >> 3; - depth = 1; - maxval = 1; - tuple_type = "BLACKANDWHITE"; - break; - case PIX_FMT_GRAY8: - n = w; - depth = 1; - maxval = 255; - tuple_type = "GRAYSCALE"; - break; - case PIX_FMT_RGB24: - n = w * 3; - depth = 3; - maxval = 255; - tuple_type = "RGB"; - break; - case PIX_FMT_RGB32: - n = w * 4; - depth = 4; - maxval = 255; - tuple_type = "RGB_ALPHA"; - break; - default: - return -1; - } - snprintf(s->bytestream, s->bytestream_end - s->bytestream, - "P7\nWIDTH %d\nHEIGHT %d\nDEPTH %d\nMAXVAL %d\nTUPLETYPE %s\nENDHDR\n", - w, h, depth, maxval, tuple_type); - s->bytestream += strlen(s->bytestream); - - ptr = p->data[0]; - linesize = p->linesize[0]; - - if (avctx->pix_fmt == PIX_FMT_RGB32) { - int j; - unsigned int v; - - for(i=0;i<h;i++) { - for(j=0;j<w;j++) { - v = ((uint32_t *)ptr)[j]; - bytestream_put_be24(&s->bytestream, v); - *s->bytestream++ = v >> 24; - } - ptr += linesize; - } - } else { - for(i=0;i<h;i++) { - memcpy(s->bytestream, ptr, n); - s->bytestream += n; - ptr += linesize; - } - } - return s->bytestream - s->bytestream_start; -} - -#if 0 -static int pnm_probe(AVProbeData *pd) -{ - const char *p = pd->buf; - if (pd->buf_size >= 8 && - p[0] == 'P' && - p[1] >= '4' && p[1] <= '6' && - pnm_space(p[2]) ) - return AVPROBE_SCORE_MAX - 1; /* to permit pgmyuv probe */ - else - return 0; -} - -static int pgmyuv_probe(AVProbeData *pd) -{ - if (match_ext(pd->filename, "pgmyuv")) - return AVPROBE_SCORE_MAX; - else - return 0; -} - -static int pam_probe(AVProbeData *pd) -{ - const char *p = pd->buf; - if (pd->buf_size >= 8 && - p[0] == 'P' && - p[1] == '7' && - p[2] == '\n') - return AVPROBE_SCORE_MAX; - else - return 0; -} -#endif - - -#ifdef CONFIG_PGM_ENCODER -AVCodec pgm_encoder = { - "pgm", - CODEC_TYPE_VIDEO, - CODEC_ID_PGM, - sizeof(PNMContext), - common_init, - pnm_encode_frame, - NULL, //encode_end, - pnm_decode_frame, - .pix_fmts= (enum PixelFormat[]){PIX_FMT_GRAY8, PIX_FMT_GRAY16BE, -1}, -}; -#endif // CONFIG_PGM_ENCODER - -#ifdef CONFIG_PGMYUV_ENCODER -AVCodec pgmyuv_encoder = { - "pgmyuv", - CODEC_TYPE_VIDEO, - CODEC_ID_PGMYUV, - sizeof(PNMContext), - common_init, - pnm_encode_frame, - NULL, //encode_end, - pnm_decode_frame, - .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1}, -}; -#endif // CONFIG_PGMYUV_ENCODER - -#ifdef CONFIG_PPM_ENCODER -AVCodec ppm_encoder = { - "ppm", - CODEC_TYPE_VIDEO, - CODEC_ID_PPM, - sizeof(PNMContext), - common_init, - pnm_encode_frame, - NULL, //encode_end, - pnm_decode_frame, - .pix_fmts= (enum PixelFormat[]){PIX_FMT_RGB24, -1}, -}; -#endif // CONFIG_PPM_ENCODER - -#ifdef CONFIG_PBM_ENCODER -AVCodec pbm_encoder = { - "pbm", - CODEC_TYPE_VIDEO, - CODEC_ID_PBM, - sizeof(PNMContext), - common_init, - pnm_encode_frame, - NULL, //encode_end, - pnm_decode_frame, - .pix_fmts= (enum PixelFormat[]){PIX_FMT_MONOWHITE, -1}, -}; -#endif // CONFIG_PBM_ENCODER - -#ifdef CONFIG_PAM_ENCODER -AVCodec pam_encoder = { - "pam", - CODEC_TYPE_VIDEO, - CODEC_ID_PAM, - sizeof(PNMContext), - common_init, - pam_encode_frame, - NULL, //encode_end, - pnm_decode_frame, - .pix_fmts= (enum PixelFormat[]){PIX_FMT_RGB24, PIX_FMT_RGB32, PIX_FMT_GRAY8, PIX_FMT_MONOWHITE, -1}, -}; -#endif // CONFIG_PAM_ENCODER |