X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;ds=sidebyside;f=libavcodec%2Ftmv.c;h=a9fcdf3b28dde18f074f13d97a2e7928bb5a8084;hb=a594f17f83a1ffdc1eec18818208fe39487dd5d7;hp=8533707f8ba91604cf88936e4252bd8404c8d667;hpb=716d413c13981da15323c7a3821860536eefdbbb;p=ffmpeg diff --git a/libavcodec/tmv.c b/libavcodec/tmv.c index 8533707f8ba..a9fcdf3b28d 100644 --- a/libavcodec/tmv.c +++ b/libavcodec/tmv.c @@ -29,59 +29,54 @@ #include #include "avcodec.h" +#include "internal.h" #include "libavutil/internal.h" #include "cga_data.h" -typedef struct TMVContext { - AVFrame pic; -} TMVContext; - static int tmv_decode_frame(AVCodecContext *avctx, void *data, - int *data_size, AVPacket *avpkt) + int *got_frame, AVPacket *avpkt) { - TMVContext *tmv = avctx->priv_data; + AVFrame *frame = data; const uint8_t *src = avpkt->data; uint8_t *dst; unsigned char_cols = avctx->width >> 3; unsigned char_rows = avctx->height >> 3; unsigned x, y, fg, bg, c; + int ret; - if (tmv->pic.data[0]) - avctx->release_buffer(avctx, &tmv->pic); - - if (avctx->get_buffer(avctx, &tmv->pic) < 0) { + if ((ret = ff_get_buffer(avctx, frame, 0)) < 0) { av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n"); - return -1; + return ret; } if (avpkt->size < 2*char_rows*char_cols) { av_log(avctx, AV_LOG_ERROR, "Input buffer too small, truncated sample?\n"); - *data_size = 0; - return -1; + *got_frame = 0; + return AVERROR_INVALIDDATA; } - tmv->pic.pict_type = AV_PICTURE_TYPE_I; - tmv->pic.key_frame = 1; - dst = tmv->pic.data[0]; + frame->pict_type = AV_PICTURE_TYPE_I; + frame->key_frame = 1; + dst = frame->data[0]; - tmv->pic.palette_has_changed = 1; - memcpy(tmv->pic.data[1], ff_cga_palette, 16 * 4); + frame->palette_has_changed = 1; + memcpy(frame->data[1], ff_cga_palette, 16 * 4); for (y = 0; y < char_rows; y++) { for (x = 0; x < char_cols; x++) { c = *src++; bg = *src >> 4; fg = *src++ & 0xF; - ff_draw_pc_font(dst + x * 8, tmv->pic.linesize[0], + ff_draw_pc_font(dst + x * 8, frame->linesize[0], ff_cga_font, 8, c, fg, bg); } - dst += tmv->pic.linesize[0] * 8; + dst += frame->linesize[0] * 8; } - *data_size = sizeof(AVFrame); - *(AVFrame *)data = tmv->pic; + *got_frame = 1; + return avpkt->size; } @@ -91,24 +86,12 @@ static av_cold int tmv_decode_init(AVCodecContext *avctx) return 0; } -static av_cold int tmv_decode_close(AVCodecContext *avctx) -{ - TMVContext *tmv = avctx->priv_data; - - if (tmv->pic.data[0]) - avctx->release_buffer(avctx, &tmv->pic); - - return 0; -} - AVCodec ff_tmv_decoder = { .name = "tmv", + .long_name = NULL_IF_CONFIG_SMALL("8088flex TMV"), .type = AVMEDIA_TYPE_VIDEO, .id = AV_CODEC_ID_TMV, - .priv_data_size = sizeof(TMVContext), .init = tmv_decode_init, - .close = tmv_decode_close, .decode = tmv_decode_frame, - .capabilities = CODEC_CAP_DR1, - .long_name = NULL_IF_CONFIG_SMALL("8088flex TMV"), + .capabilities = AV_CODEC_CAP_DR1, };