mirror of https://git.ffmpeg.org/ffmpeg.git
avcodec/hap: pass texture-compression destination as argument, not in context
This allows a subsequent change to compress directly into the output packet when possible. Reviewed-by: Michael Niedermayer <michael@niedermayer.cc> Signed-off-by: Tom Butterworth <bangnoise@gmail.com>
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@ -52,12 +52,14 @@ enum HapHeaderLength {
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HAP_HDR_LONG = 8,
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};
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static void compress_texture(AVCodecContext *avctx, const AVFrame *f)
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static int compress_texture(AVCodecContext *avctx, uint8_t *out, int out_length, const AVFrame *f)
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{
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HapContext *ctx = avctx->priv_data;
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uint8_t *out = ctx->tex_buf;
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int i, j;
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if (ctx->tex_size > out_length)
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return AVERROR_BUFFER_TOO_SMALL;
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for (j = 0; j < avctx->height; j += 4) {
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for (i = 0; i < avctx->width; i += 4) {
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uint8_t *p = f->data[0] + i * 4 + j * f->linesize[0];
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@ -65,6 +67,8 @@ static void compress_texture(AVCodecContext *avctx, const AVFrame *f)
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out += step;
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}
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}
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return 0;
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}
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/* section_length does not include the header */
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@ -201,7 +205,9 @@ static int hap_encode(AVCodecContext *avctx, AVPacket *pkt,
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return ret;
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/* DXTC compression. */
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compress_texture(avctx, frame);
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ret = compress_texture(avctx, ctx->tex_buf, ctx->tex_size, frame);
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if (ret < 0)
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return ret;
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/* Compress (using Snappy) the frame */
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final_data_size = hap_compress_frame(avctx, pkt->data + header_length);
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