On Sun, Feb 26, 2012 at 07:54:26PM +0200, Felipe Contreras wrote:
> Signed-off-by: Felipe Contreras
> ---
> configure|5 ++
> libavcodec/Makefile |1 +
> libavcodec/allcodecs.c |1 +
> libavcodec/tidsp_mpeg4.c | 156
> ++
> 4 files changed, 163 insertions(+)
> create mode 100644 libavcodec/tidsp_mpeg4.c
Please also add a Changelog entry.
> --- /dev/null
> +++ b/libavcodec/tidsp_mpeg4.c
> @@ -0,0 +1,156 @@
> +/*
> + * MPEG-4 / H.263 HW decode acceleration through TI DSP
> + *
> + * This file is part of FFmpeg.
> + *
> + * This file may be used under the terms of the GNU Lesser General Public
> + * License version 2.1, a copy of which is found in COPYING.LGPLv2.1 included
> + * in the packaging of this file.
> + */
Please employ our standard license boilerplate for LGPL 2.1 or later.
> +static void handle_buffer(struct td_context *td_ctx, struct td_buffer *b)
> +{
> + AVCodecContext *avctx = td_ctx->client;
> + struct td_av_context *ctx = avctx->hwaccel_private;
> +
> + if (b->port->id == 0)
> + return;
> + if (ctx->output_buffer)
> + av_log(avctx, AV_LOG_ERROR, "overriding buffer\n");
> + ctx->output_buffer = b;
> +}
Replace all tabs by spaces.
> +static av_cold int init(AVCodecContext *avctx)
> +{
> + struct td_av_context *ctx;
> + struct td_context *td_ctx;
> +
> + avctx->hwaccel_private = ctx = av_mallocz(sizeof(*ctx));
> + ctx->td_ctx = td_ctx = td_new(avctx);
That malloc looks unchecked to me.
> + td_ctx->codec = &td_mp4vdec_codec;
> + td_ctx->width = avctx->width;
> + td_ctx->height = avctx->height;
> + td_ctx->handle_buffer = handle_buffer;
nit: please vertically align the '='.
> +static int start_frame(AVCodecContext *avctx, const uint8_t *buffer,
> uint32_t size)
nit: please break this long line.
> + ctx->output_buffer = NULL;
> + f = (AVFrame*) &s->current_picture;
Wouldn't
f = &s->current_picture.f;
work as well?
> + for (i = 0; i < avctx->height; i++)
> + memcpy(f->data[0] + i * f->linesize[0], p1 + i * avctx->width,
> avctx->width);
> + for (i = 0; i < avctx->height / 2; i++)
> + memcpy(f->data[1] + i * f->linesize[1], p2 + i * avctx->width /
> 2, avctx->width / 2);
> + for (i = 0; i < avctx->height / 2; i++)
> + memcpy(f->data[2] + i * f->linesize[2], p3 + i * avctx->width /
> 2, avctx->width / 2);
nit: long lines
> +AVHWAccel ff_mpeg4_tidsp_hwaccel = {
> + .name = "mpeg4_tidsp",
> + .type = AVMEDIA_TYPE_VIDEO,
> + .id = CODEC_ID_MPEG4,
> + .pix_fmt = PIX_FMT_YUV420P,
> + .start_frame = start_frame,
> + .end_frame = end_frame,
> + .decode_slice = decode_slice,
> + .init = init,
> + .close = close,
Please align the '='.
Diego
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