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feat: more options for encoder construction

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kieran 2024-11-18 10:48:22 +00:00
parent 53614e66ee
commit db0b57e122
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GPG Key ID: DE71CEB3925BE941
1 changed files with 23 additions and 11 deletions
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34
src/encode.rs
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@ -1,15 +1,9 @@
use std::collections::HashMap;
use std::{ptr, slice};
use crate::{bail_ffmpeg, get_ffmpeg_error_msg, options_to_dict};
use anyhow::{bail, Error};
use ffmpeg_sys_the_third::{
av_channel_layout_default, av_d2q, av_inv_q, av_packet_alloc, av_packet_free,
avcodec_alloc_context3, avcodec_find_encoder, avcodec_free_context,
avcodec_get_supported_config, avcodec_open2, avcodec_receive_packet, avcodec_send_frame,
AVChannelLayout, AVCodec, AVCodecConfig, AVCodecContext, AVCodecID, AVFrame, AVPacket,
AVPixelFormat, AVRational, AVSampleFormat, AVERROR, AVERROR_EOF,
};
use crate::{bail_ffmpeg, cstr, get_ffmpeg_error_msg, options_to_dict};
use anyhow::{bail, Error, Result};
use ffmpeg_sys_the_third::{av_channel_layout_default, av_d2q, av_inv_q, av_packet_alloc, av_packet_free, avcodec_alloc_context3, avcodec_find_encoder, avcodec_find_encoder_by_name, avcodec_free_context, avcodec_get_supported_config, avcodec_open2, avcodec_receive_packet, avcodec_send_frame, AVChannelLayout, AVCodec, AVCodecConfig, AVCodecContext, AVCodecID, AVFrame, AVPacket, AVPixelFormat, AVRational, AVSampleFormat, AVERROR, AVERROR_EOF};
use libc::EAGAIN;
pub struct Encoder {
@ -29,13 +23,31 @@ impl Drop for Encoder {
}
impl Encoder {
/// Create a new encoder with the specified codec
pub fn new(codec: AVCodecID) -> Result<Self, Error> {
/// Create a new encoder by codec id
pub fn new(codec: AVCodecID) -> Result<Self> {
unsafe {
let codec = avcodec_find_encoder(codec);
if codec.is_null() {
bail!("codec not found");
}
Self::new_with_codec(codec)
}
}
/// Create a new encoder by name
pub fn new_with_name(name: &str) -> Result<Self> {
unsafe {
let codec = avcodec_find_encoder_by_name(cstr!(name));
if codec.is_null() {
bail!("codec not found");
}
Self::new_with_codec(codec)
}
}
/// Create a new encoder with a specific codec instance
pub fn new_with_codec(codec: *const AVCodec) -> Result<Self> {
unsafe {
let ctx = avcodec_alloc_context3(codec);
if ctx.is_null() {
bail!("context allocation failed");