diff options
Diffstat (limited to 'libavcodec/rawdec.c')
-rw-r--r-- | libavcodec/rawdec.c | 73 |
1 files changed, 52 insertions, 21 deletions
diff --git a/libavcodec/rawdec.c b/libavcodec/rawdec.c index 93cbedf..b7ce2b6 100644 --- a/libavcodec/rawdec.c +++ b/libavcodec/rawdec.c @@ -41,7 +41,11 @@ typedef struct RawVideoContext { AVBufferRef *palette; int frame_size; /* size of the frame in bytes */ int flip; - int is_1_2_4_8_bpp; // 1, 2, 4 and 8 bpp in avi/mov + int is_1_2_4_8_bpp; // 1, 2, 4 and 8 bpp in avi/mov, 1 and 8 bpp in nut + int is_mono; + int is_pal8; + int is_nut_mono; + int is_nut_pal8; int is_yuv2; int is_lt_16bpp; // 16bpp pixfmt and bits_per_coded_sample < 16 int tff; @@ -96,7 +100,7 @@ static av_cold int raw_init_decoder(AVCodecContext *avctx) avpriv_set_systematic_pal2((uint32_t*)context->palette->data, avctx->pix_fmt); else { memset(context->palette->data, 0, AVPALETTE_SIZE); - if (avctx->bits_per_coded_sample == 1) + if (avctx->bits_per_coded_sample <= 1) memset(context->palette->data, 0xff, 4); } } @@ -108,11 +112,24 @@ static av_cold int raw_init_decoder(AVCodecContext *avctx) avctx->codec_tag == MKTAG('W','R','A','W')) context->flip = 1; + if (avctx->pix_fmt == AV_PIX_FMT_MONOWHITE || + avctx->pix_fmt == AV_PIX_FMT_MONOBLACK) + context->is_mono = 1; + else if (avctx->pix_fmt == AV_PIX_FMT_PAL8) + context->is_pal8 = 1; + + if (avctx->codec_tag == MKTAG('B','1','W','0') || + avctx->codec_tag == MKTAG('B','0','W','1')) + context->is_nut_mono = 1; + else if (avctx->codec_tag == MKTAG('P','A','L','8')) + context->is_nut_pal8 = 1; + if (avctx->codec_tag == AV_RL32("yuv2") && avctx->pix_fmt == AV_PIX_FMT_YUYV422) context->is_yuv2 = 1; - if (avctx->pix_fmt == AV_PIX_FMT_PAL8 && avctx->bits_per_coded_sample == 1) + /* Temporary solution until PAL8 is implemented in nut */ + if (context->is_pal8 && avctx->bits_per_coded_sample == 1) avctx->pix_fmt = AV_PIX_FMT_NONE; return 0; @@ -160,22 +177,34 @@ static int raw_decode(AVCodecContext *avctx, void *data, int *got_frame, const uint8_t *buf = avpkt->data; int buf_size = avpkt->size; int linesize_align = 4; - int avpkt_stride; + int stride; int res, len; int need_copy; AVFrame *frame = data; + if (avctx->width <= 0) { + av_log(avctx, AV_LOG_ERROR, "width is not set\n"); + return AVERROR_INVALIDDATA; + } if (avctx->height <= 0) { av_log(avctx, AV_LOG_ERROR, "height is not set\n"); return AVERROR_INVALIDDATA; } - avpkt_stride = avpkt->size / avctx->height; - if (avpkt_stride == 0) { - av_log(avctx, AV_LOG_ERROR, "Packet too small (%d) height (%d)\n", avpkt->size, avctx->height); + if (context->is_nut_mono) + stride = avctx->width / 8 + (avctx->width & 7 ? 1 : 0); + else if (context->is_nut_pal8) + stride = avctx->width; + else + stride = avpkt->size / avctx->height; + + if (stride == 0 || avpkt->size < stride * avctx->height) { + av_log(avctx, AV_LOG_ERROR, "Packet too small (%d)\n", avpkt->size); return AVERROR_INVALIDDATA; } + + /* Temporary solution until PAL8 is implemented in nut */ if (avctx->pix_fmt == AV_PIX_FMT_NONE && avctx->bits_per_coded_sample == 1 && avctx->frame_number == 0 && @@ -185,18 +214,20 @@ static int raw_decode(AVCodecContext *avctx, void *data, int *got_frame, const uint8_t *pal = av_packet_get_side_data(avpkt, AV_PKT_DATA_PALETTE, NULL); if (!pal) { avctx->pix_fmt = AV_PIX_FMT_MONOWHITE; + context->is_pal8 = 0; + context->is_mono = 1; } else avctx->pix_fmt = AV_PIX_FMT_PAL8; } - desc = av_pix_fmt_desc_get(avctx->pix_fmt); if ((avctx->bits_per_coded_sample == 8 || avctx->bits_per_coded_sample == 4 - || avctx->bits_per_coded_sample == 2 || avctx->bits_per_coded_sample == 1) && - (avctx->pix_fmt == AV_PIX_FMT_PAL8 || avctx->pix_fmt == AV_PIX_FMT_MONOWHITE) && - (!avctx->codec_tag || avctx->codec_tag == MKTAG('r','a','w',' '))) { + || avctx->bits_per_coded_sample <= 2) && + (context->is_mono || context->is_pal8) && + (!avctx->codec_tag || avctx->codec_tag == MKTAG('r','a','w',' ') || + context->is_nut_mono || context->is_nut_pal8)) { context->is_1_2_4_8_bpp = 1; - if (avctx->bits_per_coded_sample == 1 && avctx->pix_fmt == AV_PIX_FMT_MONOWHITE) { + if (context->is_mono) { int row_bytes = avctx->width / 8 + (avctx->width & 7 ? 1 : 0); context->frame_size = av_image_get_buffer_size(avctx->pix_fmt, FFALIGN(row_bytes, 16) * 8, @@ -240,19 +271,18 @@ static int raw_decode(AVCodecContext *avctx, void *data, int *got_frame, if (!frame->buf[0]) return AVERROR(ENOMEM); - // 1, 2, 4 and 8 bpp in avi/mov + // 1, 2, 4 and 8 bpp in avi/mov, 1 and 8 bpp in nut if (context->is_1_2_4_8_bpp) { int i, j, row_pix = 0; uint8_t *dst = frame->buf[0]->data; - buf_size = context->frame_size - - (avctx->pix_fmt == AV_PIX_FMT_PAL8 ? AVPALETTE_SIZE : 0); - if (avctx->bits_per_coded_sample == 8 || avctx->pix_fmt == AV_PIX_FMT_MONOWHITE) { - int pix_per_byte = avctx->pix_fmt == AV_PIX_FMT_MONOWHITE ? 8 : 1; + buf_size = context->frame_size - (context->is_pal8 ? AVPALETTE_SIZE : 0); + if (avctx->bits_per_coded_sample == 8 || context->is_nut_pal8 || context->is_mono) { + int pix_per_byte = context->is_mono ? 8 : 1; for (i = 0, j = 0; j < buf_size && i<avpkt->size; i++, j++) { dst[j] = buf[i]; row_pix += pix_per_byte; if (row_pix >= avctx->width) { - i += avpkt_stride - (i % avpkt_stride) - 1; + i += stride - (i % stride) - 1; j += 16 - (j % 16) - 1; row_pix = 0; } @@ -263,7 +293,7 @@ static int raw_decode(AVCodecContext *avctx, void *data, int *got_frame, dst[2 * j + 1] = buf[i] & 15; row_pix += 2; if (row_pix >= avctx->width) { - i += avpkt_stride - (i % avpkt_stride) - 1; + i += stride - (i % stride) - 1; j += 8 - (j % 8) - 1; row_pix = 0; } @@ -276,7 +306,7 @@ static int raw_decode(AVCodecContext *avctx, void *data, int *got_frame, dst[4 * j + 3] = buf[i] & 3; row_pix += 4; if (row_pix >= avctx->width) { - i += avpkt_stride - (i % avpkt_stride) - 1; + i += stride - (i % stride) - 1; j += 4 - (j % 4) - 1; row_pix = 0; } @@ -294,7 +324,7 @@ static int raw_decode(AVCodecContext *avctx, void *data, int *got_frame, dst[8 * j + 7] = buf[i] & 1; row_pix += 8; if (row_pix >= avctx->width) { - i += avpkt_stride - (i % avpkt_stride) - 1; + i += stride - (i % stride) - 1; j += 2 - (j % 2) - 1; row_pix = 0; } @@ -371,6 +401,7 @@ static int raw_decode(AVCodecContext *avctx, void *data, int *got_frame, avctx->pix_fmt==AV_PIX_FMT_RGB555BE || avctx->pix_fmt==AV_PIX_FMT_RGB565LE || avctx->pix_fmt==AV_PIX_FMT_MONOWHITE || + avctx->pix_fmt==AV_PIX_FMT_MONOBLACK || avctx->pix_fmt==AV_PIX_FMT_PAL8) && FFALIGN(frame->linesize[0], linesize_align) * avctx->height <= buf_size) frame->linesize[0] = FFALIGN(frame->linesize[0], linesize_align); |